20601360

素因数分解:

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

素因数の和:134

約数の個数: 240

約数和(自身を含む): 77995008

約数和(自身を除く): 57393648

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, 1040, 1065, 1116, 1136, 1170, 1209, 1240, 1278, 1395, 1420, 1488, 1560, 1612, 1704, 1846, 1860, 1872, 2015, 2130, 2201, 2232, 2340, 2418, 2480, 2556, 2769, 2790, 2840, 3120, 3195, 3224, 3408, 3627, 3692, 3720, 4030, 4260, 4402, 4464, 4615, 4680, 4836, 5112, 5538, 5580, 5680, 6045, 6390, 6448, 6603, 7254, 7384, 7440, 8060, 8307, 8520, 8804, 9230, 9360, 9672, 10224, 11005, 11076, 11160, 12090, 12780, 13206, 13845, 14508, 14768, 16120, 16614, 17040, 17608, 18135, 18460, 19344, 19809, 22010, 22152, 22320, 24180, 25560, 26412, 27690, 28613, 29016, 32240, 33015, 33228, 35216, 36270, 36920, 39618, 41535, 44020, 44304, 48360, 51120, 52824, 55380, 57226, 58032, 66030, 66456, 72540, 73840, 79236, 83070, 85839, 88040, 96720, 99045, 105648, 110760, 114452, 132060, 132912, 143065, 145080, 158472, 166140, 171678, 176080, 198090, 221520, 228904, 257517, 264120, 286130, 290160, 316944, 332280, 343356, 396180, 429195, 457808, 515034, 528240, 572260, 664560, 686712, 792360, 858390, 1030068, 1144520, 1287585, 1373424, 1584720, 1716780, 2060136, 2289040, 2575170, 3433560, 4120272, 5150340, 6867120, 10300680, 20601360]

約数ペア:

[(1, 20601360), (2, 10300680), (3, 6867120), (4, 5150340), (5, 4120272), (6, 3433560), (8, 2575170), (9, 2289040), (10, 2060136), (12, 1716780), (13, 1584720), (15, 1373424), (16, 1287585), (18, 1144520), (20, 1030068), (24, 858390), (26, 792360), (30, 686712), (31, 664560), (36, 572260), (39, 528240), (40, 515034), (45, 457808), (48, 429195), (52, 396180), (60, 343356), (62, 332280), (65, 316944), (71, 290160), (72, 286130), (78, 264120), (80, 257517), (90, 228904), (93, 221520), (104, 198090), (117, 176080), (120, 171678), (124, 166140), (130, 158472), (142, 145080), (144, 143065), (155, 132912), (156, 132060), (180, 114452), (186, 110760), (195, 105648), (208, 99045), (213, 96720), (234, 88040), (240, 85839), (248, 83070), (260, 79236), (279, 73840), (284, 72540), (310, 66456), (312, 66030), (355, 58032), (360, 57226), (372, 55380), (390, 52824), (403, 51120), (426, 48360), (465, 44304), (468, 44020), (496, 41535), (520, 39618), (558, 36920), (568, 36270), (585, 35216), (620, 33228), (624, 33015), (639, 32240), (710, 29016), (720, 28613), (744, 27690), (780, 26412), (806, 25560), (852, 24180), (923, 22320), (930, 22152), (936, 22010), (1040, 19809), (1065, 19344), (1116, 18460), (1136, 18135), (1170, 17608), (1209, 17040), (1240, 16614), (1278, 16120), (1395, 14768), (1420, 14508), (1488, 13845), (1560, 13206), (1612, 12780), (1704, 12090), (1846, 11160), (1860, 11076), (1872, 11005), (2015, 10224), (2130, 9672), (2201, 9360), (2232, 9230), (2340, 8804), (2418, 8520), (2480, 8307), (2556, 8060), (2769, 7440), (2790, 7384), (2840, 7254), (3120, 6603), (3195, 6448), (3224, 6390), (3408, 6045), (3627, 5680), (3692, 5580), (3720, 5538), (4030, 5112), (4260, 4836), (4402, 4680), (4464, 4615)]