80620180

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{7237}}^1$

素因数の和:7803

約数の個数: 24

約数和(自身を含む): 169629768

約数和(自身を除く): 89009588

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 7237, 11140, 14474, 28948, 36185, 72370, 144740, 4031009, 8062018, 16124036, 20155045, 40310090, 80620180]

約数ペア:

[(1, 80620180), (2, 40310090), (4, 20155045), (5, 16124036), (10, 8062018), (20, 4031009), (557, 144740), (1114, 72370), (2228, 36185), (2785, 28948), (5570, 14474), (7237, 11140)]