309860560

素因数分解:

$2^4\times 5^1\times {\mathrm{3873257}}^1$

素因数の和:3873270

約数の個数: 20

約数和(自身を含む): 720425988

約数和(自身を除く): 410565428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3873257, 7746514, 15493028, 19366285, 30986056, 38732570, 61972112, 77465140, 154930280, 309860560]

約数ペア:

[(1, 309860560), (2, 154930280), (4, 77465140), (5, 61972112), (8, 38732570), (10, 30986056), (16, 19366285), (20, 15493028), (40, 7746514), (80, 3873257)]