81275545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43117}}^1$

素因数の和:43164

約数の個数: 16

約数和(自身を含む): 108657360

約数和(自身を除く): 27381815

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 43117, 215585, 560521, 1250393, 2802605, 6251965, 16255109, 81275545]

約数ペア:

[(1, 81275545), (5, 16255109), (13, 6251965), (29, 2802605), (65, 1250393), (145, 560521), (377, 215585), (1885, 43117)]