81253490

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{80449}}^1$

素因数の和:80557

約数の個数: 16

約数和(自身を含む): 147706200

約数和(自身を除く): 66452710

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 80449, 160898, 402245, 804490, 8125349, 16250698, 40626745, 81253490]

約数ペア:

[(1, 81253490), (2, 40626745), (5, 16250698), (10, 8125349), (101, 804490), (202, 402245), (505, 160898), (1010, 80449)]