445813640

素因数分解:

$2^3\times 5^1\times {\mathrm{2521}}^1\times {\mathrm{4421}}^1$

素因数の和:6953

約数の個数: 32

約数和(自身を含む): 1003705560

約数和(自身を除く): 557891920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2521, 4421, 5042, 8842, 10084, 12605, 17684, 20168, 22105, 25210, 35368, 44210, 50420, 88420, 100840, 176840, 11145341, 22290682, 44581364, 55726705, 89162728, 111453410, 222906820, 445813640]

約数ペア:

[(1, 445813640), (2, 222906820), (4, 111453410), (5, 89162728), (8, 55726705), (10, 44581364), (20, 22290682), (40, 11145341), (2521, 176840), (4421, 100840), (5042, 88420), (8842, 50420), (10084, 44210), (12605, 35368), (17684, 25210), (20168, 22105)]