81543275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4861}}^1$

素因数の和:4943

約数の個数: 24

約数和(自身を含む): 112137168

約数和(自身を除く): 30593893

約数列:

[1, 5, 11, 25, 55, 61, 275, 305, 671, 1525, 3355, 4861, 16775, 24305, 53471, 121525, 267355, 296521, 1336775, 1482605, 3261731, 7413025, 16308655, 81543275]

約数ペア:

[(1, 81543275), (5, 16308655), (11, 7413025), (25, 3261731), (55, 1482605), (61, 1336775), (275, 296521), (305, 267355), (671, 121525), (1525, 53471), (3355, 24305), (4861, 16775)]