156768020

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{9689}}^1$

素因数の和:10507

約数の個数: 24

約数和(自身を含む): 329653800

約数和(自身を除く): 172885780

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 9689, 16180, 19378, 38756, 48445, 96890, 193780, 7838401, 15676802, 31353604, 39192005, 78384010, 156768020]

約数ペア:

[(1, 156768020), (2, 78384010), (4, 39192005), (5, 31353604), (10, 15676802), (20, 7838401), (809, 193780), (1618, 96890), (3236, 48445), (4045, 38756), (8090, 19378), (9689, 16180)]