1639252720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{94427}}^1$

素因数の和:94478

約数の個数: 80

約数和(自身を含む): 4496283648

約数和(自身を除く): 2857030928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 17360, 94427, 188854, 377708, 472135, 660989, 755416, 944270, 1321978, 1510832, 1888540, 2643956, 2927237, 3304945, 3777080, 5287912, 5854474, 6609890, 7554160, 10575824, 11708948, 13219780, 14636185, 20490659, 23417896, 26439560, 29272370, 40981318, 46835792, 52879120, 58544740, 81962636, 102453295, 117089480, 163925272, 204906590, 234178960, 327850544, 409813180, 819626360, 1639252720]

約数ペア:

[(1, 1639252720), (2, 819626360), (4, 409813180), (5, 327850544), (7, 234178960), (8, 204906590), (10, 163925272), (14, 117089480), (16, 102453295), (20, 81962636), (28, 58544740), (31, 52879120), (35, 46835792), (40, 40981318), (56, 29272370), (62, 26439560), (70, 23417896), (80, 20490659), (112, 14636185), (124, 13219780), (140, 11708948), (155, 10575824), (217, 7554160), (248, 6609890), (280, 5854474), (310, 5287912), (434, 3777080), (496, 3304945), (560, 2927237), (620, 2643956), (868, 1888540), (1085, 1510832), (1240, 1321978), (1736, 944270), (2170, 755416), (2480, 660989), (3472, 472135), (4340, 377708), (8680, 188854), (17360, 94427)]