98798620

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{19681}}^1$

素因数の和:19941

約数の個数: 24

約数和(自身を含む): 208314288

約数和(自身を除く): 109515668

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 19681, 39362, 78724, 98405, 196810, 393620, 4939931, 9879862, 19759724, 24699655, 49399310, 98798620]

約数ペア:

[(1, 98798620), (2, 49399310), (4, 24699655), (5, 19759724), (10, 9879862), (20, 4939931), (251, 393620), (502, 196810), (1004, 98405), (1255, 78724), (2510, 39362), (5020, 19681)]