20146250

素因数分解:

$2^1\times 5^4\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 40

約数和(自身を含む): 38462688

約数和(自身を除く): 18316438

約数列:

[1, 2, 5, 10, 25, 50, 71, 125, 142, 227, 250, 355, 454, 625, 710, 1135, 1250, 1775, 2270, 3550, 5675, 8875, 11350, 16117, 17750, 28375, 32234, 44375, 56750, 80585, 88750, 141875, 161170, 283750, 402925, 805850, 2014625, 4029250, 10073125, 20146250]

約数ペア:

[(1, 20146250), (2, 10073125), (5, 4029250), (10, 2014625), (25, 805850), (50, 402925), (71, 283750), (125, 161170), (142, 141875), (227, 88750), (250, 80585), (355, 56750), (454, 44375), (625, 32234), (710, 28375), (1135, 17750), (1250, 16117), (1775, 11350), (2270, 8875), (3550, 5675)]