77288420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{351311}}^1$

素因数の和:351331

約数の個数: 24

約数和(自身を含む): 177061248

約数和(自身を除く): 99772828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 351311, 702622, 1405244, 1756555, 3513110, 3864421, 7026220, 7728842, 15457684, 19322105, 38644210, 77288420]

約数ペア:

[(1, 77288420), (2, 38644210), (4, 19322105), (5, 15457684), (10, 7728842), (11, 7026220), (20, 3864421), (22, 3513110), (44, 1756555), (55, 1405244), (110, 702622), (220, 351311)]