818372990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1\times {\mathrm{2647}}^1$

素因数の和:3416

約数の個数: 32

約数和(自身を含む): 1509995520

約数和(自身を除く): 691622530

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 719, 1438, 2647, 3595, 5294, 7190, 13235, 26470, 30917, 61834, 113821, 154585, 227642, 309170, 569105, 1138210, 1903193, 3806386, 9515965, 19031930, 81837299, 163674598, 409186495, 818372990]

約数ペア:

[(1, 818372990), (2, 409186495), (5, 163674598), (10, 81837299), (43, 19031930), (86, 9515965), (215, 3806386), (430, 1903193), (719, 1138210), (1438, 569105), (2647, 309170), (3595, 227642), (5294, 154585), (7190, 113821), (13235, 61834), (26470, 30917)]