638642160

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 360

約数和(自身を含む): 2420282592

約数和(自身を除く): 1781640432

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 48, 52, 60, 62, 65, 71, 72, 78, 80, 90, 93, 104, 117, 120, 124, 130, 142, 144, 155, 156, 180, 186, 195, 208, 213, 234, 240, 248, 260, 279, 284, 310, 312, 355, 360, 372, 390, 403, 426, 465, 468, 496, 520, 558, 568, 585, 620, 624, 639, 710, 720, 744, 780, 806, 852, 923, 930, 936, 961, 1040, 1065, 1116, 1136, 1170, 1209, 1240, 1278, 1395, 1420, 1488, 1560, 1612, 1704, 1846, 1860, 1872, 1922, 2015, 2130, 2201, 2232, 2340, 2418, 2480, 2556, 2769, 2790, 2840, 2883, 3120, 3195, 3224, 3408, 3627, 3692, 3720, 3844, 4030, 4260, 4402, 4464, 4615, 4680, 4805, 4836, 5112, 5538, 5580, 5680, 5766, 6045, 6390, 6448, 6603, 7254, 7384, 7440, 7688, 8060, 8307, 8520, 8649, 8804, 9230, 9360, 9610, 9672, 10224, 11005, 11076, 11160, 11532, 12090, 12493, 12780, 13206, 13845, 14415, 14508, 14768, 15376, 16120, 16614, 17040, 17298, 17608, 18135, 18460, 19220, 19344, 19809, 22010, 22152, 22320, 23064, 24180, 24986, 25560, 26412, 27690, 28613, 28830, 29016, 32240, 33015, 33228, 34596, 35216, 36270, 36920, 37479, 38440, 39618, 41535, 43245, 44020, 44304, 46128, 48360, 49972, 51120, 52824, 55380, 57226, 57660, 58032, 62465, 66030, 66456, 68231, 69192, 72540, 73840, 74958, 76880, 79236, 83070, 85839, 86490, 88040, 96720, 99045, 99944, 105648, 110760, 112437, 114452, 115320, 124930, 132060, 132912, 136462, 138384, 143065, 145080, 149916, 158472, 166140, 171678, 172980, 176080, 187395, 198090, 199888, 204693, 221520, 224874, 228904, 230640, 249860, 257517, 264120, 272924, 286130, 290160, 299832, 316944, 332280, 341155, 343356, 345960, 374790, 396180, 409386, 429195, 449748, 457808, 499720, 515034, 528240, 545848, 562185, 572260, 599664, 614079, 664560, 682310, 686712, 691920, 749580, 792360, 818772, 858390, 887003, 899496, 999440, 1023465, 1030068, 1091696, 1124370, 1144520, 1228158, 1287585, 1364620, 1373424, 1499160, 1584720, 1637544, 1716780, 1774006, 1798992, 2046930, 2060136, 2248740, 2289040, 2456316, 2575170, 2661009, 2729240, 2998320, 3070395, 3275088, 3433560, 3548012, 4093860, 4120272, 4435015, 4497480, 4912632, 5150340, 5322018, 5458480, 6140790, 6867120, 7096024, 7983027, 8187720, 8870030, 8994960, 9825264, 10300680, 10644036, 12281580, 13305045, 14192048, 15966054, 16375440, 17740060, 20601360, 21288072, 24563160, 26610090, 31932108, 35480120, 39915135, 42576144, 49126320, 53220180, 63864216, 70960240, 79830270, 106440360, 127728432, 159660540, 212880720, 319321080, 638642160]

約数ペア:

[(1, 638642160), (2, 319321080), (3, 212880720), (4, 159660540), (5, 127728432), (6, 106440360), (8, 79830270), (9, 70960240), (10, 63864216), (12, 53220180), (13, 49126320), (15, 42576144), (16, 39915135), (18, 35480120), (20, 31932108), (24, 26610090), (26, 24563160), (30, 21288072), (31, 20601360), (36, 17740060), (39, 16375440), (40, 15966054), (45, 14192048), (48, 13305045), (52, 12281580), (60, 10644036), (62, 10300680), (65, 9825264), (71, 8994960), (72, 8870030), (78, 8187720), (80, 7983027), (90, 7096024), (93, 6867120), (104, 6140790), (117, 5458480), (120, 5322018), (124, 5150340), (130, 4912632), (142, 4497480), (144, 4435015), (155, 4120272), (156, 4093860), (180, 3548012), (186, 3433560), (195, 3275088), (208, 3070395), (213, 2998320), (234, 2729240), (240, 2661009), (248, 2575170), (260, 2456316), (279, 2289040), (284, 2248740), (310, 2060136), (312, 2046930), (355, 1798992), (360, 1774006), (372, 1716780), (390, 1637544), (403, 1584720), (426, 1499160), (465, 1373424), (468, 1364620), (496, 1287585), (520, 1228158), (558, 1144520), (568, 1124370), (585, 1091696), (620, 1030068), (624, 1023465), (639, 999440), (710, 899496), (720, 887003), (744, 858390), (780, 818772), (806, 792360), (852, 749580), (923, 691920), (930, 686712), (936, 682310), (961, 664560), (1040, 614079), (1065, 599664), (1116, 572260), (1136, 562185), (1170, 545848), (1209, 528240), (1240, 515034), (1278, 499720), (1395, 457808), (1420, 449748), (1488, 429195), (1560, 409386), (1612, 396180), (1704, 374790), (1846, 345960), (1860, 343356), (1872, 341155), (1922, 332280), (2015, 316944), (2130, 299832), (2201, 290160), (2232, 286130), (2340, 272924), (2418, 264120), (2480, 257517), (2556, 249860), (2769, 230640), (2790, 228904), (2840, 224874), (2883, 221520), (3120, 204693), (3195, 199888), (3224, 198090), (3408, 187395), (3627, 176080), (3692, 172980), (3720, 171678), (3844, 166140), (4030, 158472), (4260, 149916), (4402, 145080), (4464, 143065), (4615, 138384), (4680, 136462), (4805, 132912), (4836, 132060), (5112, 124930), (5538, 115320), (5580, 114452), (5680, 112437), (5766, 110760), (6045, 105648), (6390, 99944), (6448, 99045), (6603, 96720), (7254, 88040), (7384, 86490), (7440, 85839), (7688, 83070), (8060, 79236), (8307, 76880), (8520, 74958), (8649, 73840), (8804, 72540), (9230, 69192), (9360, 68231), (9610, 66456), (9672, 66030), (10224, 62465), (11005, 58032), (11076, 57660), (11160, 57226), (11532, 55380), (12090, 52824), (12493, 51120), (12780, 49972), (13206, 48360), (13845, 46128), (14415, 44304), (14508, 44020), (14768, 43245), (15376, 41535), (16120, 39618), (16614, 38440), (17040, 37479), (17298, 36920), (17608, 36270), (18135, 35216), (18460, 34596), (19220, 33228), (19344, 33015), (19809, 32240), (22010, 29016), (22152, 28830), (22320, 28613), (23064, 27690), (24180, 26412), (24986, 25560)]