20505518520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:546

約数の個数: 256

約数和(自身を含む): 63959777280

約数和(自身を除く): 43454258760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 83, 107, 120, 142, 166, 213, 214, 249, 271, 284, 321, 332, 355, 415, 426, 428, 498, 535, 542, 568, 642, 664, 710, 813, 830, 852, 856, 996, 1065, 1070, 1084, 1245, 1284, 1355, 1420, 1605, 1626, 1660, 1704, 1992, 2130, 2140, 2168, 2490, 2568, 2710, 2840, 3210, 3252, 3320, 4065, 4260, 4280, 4980, 5420, 5893, 6420, 6504, 7597, 8130, 8520, 8881, 9960, 10840, 11786, 12840, 15194, 16260, 17679, 17762, 19241, 22493, 22791, 23572, 26643, 28997, 29465, 30388, 32520, 35358, 35524, 37985, 38482, 44405, 44986, 45582, 47144, 53286, 57723, 57994, 58930, 60776, 67479, 70716, 71048, 75970, 76964, 86991, 88395, 88810, 89972, 91164, 96205, 106572, 112465, 113955, 115446, 115988, 117860, 133215, 134958, 141432, 144985, 151940, 153928, 173982, 176790, 177620, 179944, 182328, 192410, 213144, 224930, 227910, 230892, 231976, 235720, 266430, 269916, 288615, 289970, 303880, 337395, 347964, 353580, 355240, 384820, 434955, 449860, 455820, 461784, 532860, 539832, 577230, 579940, 630551, 674790, 695928, 707160, 769640, 869910, 899720, 911640, 1065720, 1154460, 1159880, 1261102, 1349580, 1597003, 1739820, 1891653, 2058787, 2308920, 2406751, 2522204, 2699160, 3152755, 3194006, 3479640, 3783306, 4117574, 4791009, 4813502, 5044408, 6176361, 6305510, 6388012, 7220253, 7566612, 7985015, 8235148, 9458265, 9582018, 9627004, 10293935, 12033755, 12352722, 12611020, 12776024, 14440506, 15133224, 15970030, 16470296, 18916530, 19164036, 19254008, 20587870, 23955045, 24067510, 24705444, 25222040, 28881012, 30881805, 31940060, 36101265, 37833060, 38328072, 41175740, 47910090, 48135020, 49410888, 57762024, 61763610, 63880120, 72202530, 75666120, 82351480, 95820180, 96270040, 123527220, 144405060, 170879321, 191640360, 247054440, 288810120, 341758642, 512637963, 683517284, 854396605, 1025275926, 1367034568, 1708793210, 2050551852, 2563189815, 3417586420, 4101103704, 5126379630, 6835172840, 10252759260, 20505518520]

約数ペア:

[(1, 20505518520), (2, 10252759260), (3, 6835172840), (4, 5126379630), (5, 4101103704), (6, 3417586420), (8, 2563189815), (10, 2050551852), (12, 1708793210), (15, 1367034568), (20, 1025275926), (24, 854396605), (30, 683517284), (40, 512637963), (60, 341758642), (71, 288810120), (83, 247054440), (107, 191640360), (120, 170879321), (142, 144405060), (166, 123527220), (213, 96270040), (214, 95820180), (249, 82351480), (271, 75666120), (284, 72202530), (321, 63880120), (332, 61763610), (355, 57762024), (415, 49410888), (426, 48135020), (428, 47910090), (498, 41175740), (535, 38328072), (542, 37833060), (568, 36101265), (642, 31940060), (664, 30881805), (710, 28881012), (813, 25222040), (830, 24705444), (852, 24067510), (856, 23955045), (996, 20587870), (1065, 19254008), (1070, 19164036), (1084, 18916530), (1245, 16470296), (1284, 15970030), (1355, 15133224), (1420, 14440506), (1605, 12776024), (1626, 12611020), (1660, 12352722), (1704, 12033755), (1992, 10293935), (2130, 9627004), (2140, 9582018), (2168, 9458265), (2490, 8235148), (2568, 7985015), (2710, 7566612), (2840, 7220253), (3210, 6388012), (3252, 6305510), (3320, 6176361), (4065, 5044408), (4260, 4813502), (4280, 4791009), (4980, 4117574), (5420, 3783306), (5893, 3479640), (6420, 3194006), (6504, 3152755), (7597, 2699160), (8130, 2522204), (8520, 2406751), (8881, 2308920), (9960, 2058787), (10840, 1891653), (11786, 1739820), (12840, 1597003), (15194, 1349580), (16260, 1261102), (17679, 1159880), (17762, 1154460), (19241, 1065720), (22493, 911640), (22791, 899720), (23572, 869910), (26643, 769640), (28997, 707160), (29465, 695928), (30388, 674790), (32520, 630551), (35358, 579940), (35524, 577230), (37985, 539832), (38482, 532860), (44405, 461784), (44986, 455820), (45582, 449860), (47144, 434955), (53286, 384820), (57723, 355240), (57994, 353580), (58930, 347964), (60776, 337395), (67479, 303880), (70716, 289970), (71048, 288615), (75970, 269916), (76964, 266430), (86991, 235720), (88395, 231976), (88810, 230892), (89972, 227910), (91164, 224930), (96205, 213144), (106572, 192410), (112465, 182328), (113955, 179944), (115446, 177620), (115988, 176790), (117860, 173982), (133215, 153928), (134958, 151940), (141432, 144985)]