81380230

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{22543}}^1$

素因数の和:22588

約数の個数: 24

約数和(自身を含む): 154606752

約数和(自身を除く): 73226522

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 22543, 45086, 112715, 225430, 428317, 856634, 2141585, 4283170, 8138023, 16276046, 40690115, 81380230]

約数ペア:

[(1, 81380230), (2, 40690115), (5, 16276046), (10, 8138023), (19, 4283170), (38, 2141585), (95, 856634), (190, 428317), (361, 225430), (722, 112715), (1805, 45086), (3610, 22543)]