40731280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^2\times {\mathrm{101}}^1$

素因数の和:256

約数の個数: 60

約数和(自身を含む): 97003836

約数和(自身を除く): 56272556

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 101, 142, 202, 284, 355, 404, 505, 568, 710, 808, 1010, 1136, 1420, 1616, 2020, 2840, 4040, 5041, 5680, 7171, 8080, 10082, 14342, 20164, 25205, 28684, 35855, 40328, 50410, 57368, 71710, 80656, 100820, 114736, 143420, 201640, 286840, 403280, 509141, 573680, 1018282, 2036564, 2545705, 4073128, 5091410, 8146256, 10182820, 20365640, 40731280]

約数ペア:

[(1, 40731280), (2, 20365640), (4, 10182820), (5, 8146256), (8, 5091410), (10, 4073128), (16, 2545705), (20, 2036564), (40, 1018282), (71, 573680), (80, 509141), (101, 403280), (142, 286840), (202, 201640), (284, 143420), (355, 114736), (404, 100820), (505, 80656), (568, 71710), (710, 57368), (808, 50410), (1010, 40328), (1136, 35855), (1420, 28684), (1616, 25205), (2020, 20164), (2840, 14342), (4040, 10082), (5041, 8080), (5680, 7171)]