20176501240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{563}}^1\times {\mathrm{859}}^1$

素因数の和:1589

約数の個数: 128

約数和(自身を含む): 52384320000

約数和(自身を除く): 32207818760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 563, 596, 745, 859, 1043, 1126, 1192, 1490, 1718, 2086, 2252, 2815, 2980, 3436, 3941, 4172, 4295, 4504, 5215, 5630, 5960, 6013, 6872, 7882, 8344, 8590, 10430, 11260, 12026, 15764, 17180, 19705, 20860, 22520, 24052, 30065, 31528, 34360, 39410, 41720, 48104, 60130, 78820, 83887, 120260, 127991, 157640, 167774, 240520, 255982, 335548, 419435, 483617, 511964, 587209, 639955, 671096, 838870, 895937, 967234, 1023928, 1174418, 1279910, 1677740, 1791874, 1934468, 2348836, 2418085, 2559820, 2936045, 3355480, 3385319, 3583748, 3868936, 4479685, 4697672, 4836170, 5119640, 5872090, 6770638, 7167496, 8959370, 9672340, 11744180, 13541276, 16926595, 17918740, 19344680, 23488360, 27082552, 33853190, 35837480, 67706380, 72058933, 135412760, 144117866, 288235732, 360294665, 504412531, 576471464, 720589330, 1008825062, 1441178660, 2017650124, 2522062655, 2882357320, 4035300248, 5044125310, 10088250620, 20176501240]

約数ペア:

[(1, 20176501240), (2, 10088250620), (4, 5044125310), (5, 4035300248), (7, 2882357320), (8, 2522062655), (10, 2017650124), (14, 1441178660), (20, 1008825062), (28, 720589330), (35, 576471464), (40, 504412531), (56, 360294665), (70, 288235732), (140, 144117866), (149, 135412760), (280, 72058933), (298, 67706380), (563, 35837480), (596, 33853190), (745, 27082552), (859, 23488360), (1043, 19344680), (1126, 17918740), (1192, 16926595), (1490, 13541276), (1718, 11744180), (2086, 9672340), (2252, 8959370), (2815, 7167496), (2980, 6770638), (3436, 5872090), (3941, 5119640), (4172, 4836170), (4295, 4697672), (4504, 4479685), (5215, 3868936), (5630, 3583748), (5960, 3385319), (6013, 3355480), (6872, 2936045), (7882, 2559820), (8344, 2418085), (8590, 2348836), (10430, 1934468), (11260, 1791874), (12026, 1677740), (15764, 1279910), (17180, 1174418), (19705, 1023928), (20860, 967234), (22520, 895937), (24052, 838870), (30065, 671096), (31528, 639955), (34360, 587209), (39410, 511964), (41720, 483617), (48104, 419435), (60130, 335548), (78820, 255982), (83887, 240520), (120260, 167774), (127991, 157640)]