71394160

素因数分解:

$2^4\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1087}}^1$

素因数の和:1921

約数の個数: 40

約数和(自身を含む): 166346496

約数和(自身を除く): 94952336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 821, 1087, 1642, 2174, 3284, 4105, 4348, 5435, 6568, 8210, 8696, 10870, 13136, 16420, 17392, 21740, 32840, 43480, 65680, 86960, 892427, 1784854, 3569708, 4462135, 7139416, 8924270, 14278832, 17848540, 35697080, 71394160]

約数ペア:

[(1, 71394160), (2, 35697080), (4, 17848540), (5, 14278832), (8, 8924270), (10, 7139416), (16, 4462135), (20, 3569708), (40, 1784854), (80, 892427), (821, 86960), (1087, 65680), (1642, 43480), (2174, 32840), (3284, 21740), (4105, 17392), (4348, 16420), (5435, 13136), (6568, 10870), (8210, 8696)]