80901785

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 101881800

約数和(自身を除く): 20980015

約数列:

[1, 5, 31, 113, 149, 155, 565, 745, 961, 3503, 4619, 4805, 16837, 17515, 23095, 84185, 108593, 143189, 521947, 542965, 715945, 2609735, 16180357, 80901785]

約数ペア:

[(1, 80901785), (5, 16180357), (31, 2609735), (113, 715945), (149, 542965), (155, 521947), (565, 143189), (745, 108593), (961, 84185), (3503, 23095), (4619, 17515), (4805, 16837)]