310318280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109267}}^1$

素因数の和:109349

約数の個数: 32

約数和(自身を含む): 708056640

約数和(自身を除く): 397738360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 109267, 218534, 437068, 546335, 874136, 1092670, 2185340, 4370680, 7757957, 15515914, 31031828, 38789785, 62063656, 77579570, 155159140, 310318280]

約数ペア:

[(1, 310318280), (2, 155159140), (4, 77579570), (5, 62063656), (8, 38789785), (10, 31031828), (20, 15515914), (40, 7757957), (71, 4370680), (142, 2185340), (284, 1092670), (355, 874136), (568, 546335), (710, 437068), (1420, 218534), (2840, 109267)]