312005140

素因数分解:

$2^2\times 5^1\times {\mathrm{2557}}^1\times {\mathrm{6101}}^1$

素因数の和:8667

約数の個数: 24

約数和(自身を含む): 655574472

約数和(自身を除く): 343569332

約数列:

[1, 2, 4, 5, 10, 20, 2557, 5114, 6101, 10228, 12202, 12785, 24404, 25570, 30505, 51140, 61010, 122020, 15600257, 31200514, 62401028, 78001285, 156002570, 312005140]

約数ペア:

[(1, 312005140), (2, 156002570), (4, 78001285), (5, 62401028), (10, 31200514), (20, 15600257), (2557, 122020), (5114, 61010), (6101, 51140), (10228, 30505), (12202, 25570), (12785, 24404)]