28661765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{8543}}^1$

素因数の和:8620

約数の個数: 16

約数和(自身を含む): 38140416

約数和(自身を除く): 9478651

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 8543, 42715, 93973, 469865, 521123, 2605615, 5732353, 28661765]

約数ペア:

[(1, 28661765), (5, 5732353), (11, 2605615), (55, 521123), (61, 469865), (305, 93973), (671, 42715), (3355, 8543)]