81257945

素因数分解:

$5^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1\times {\mathrm{557}}^1$

素因数の和:904

約数の個数: 16

約数和(自身を含む): 98832960

約数和(自身を除く): 17575015

約数列:

[1, 5, 163, 179, 557, 815, 895, 2785, 29177, 90791, 99703, 145885, 453955, 498515, 16251589, 81257945]

約数ペア:

[(1, 81257945), (5, 16251589), (163, 498515), (179, 453955), (557, 145885), (815, 99703), (895, 90791), (2785, 29177)]