8420390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6959}}^1$

素因数の和:6988

約数の個数: 24

約数和(自身を含む): 16662240

約数和(自身を除く): 8241850

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 6959, 13918, 34795, 69590, 76549, 153098, 382745, 765490, 842039, 1684078, 4210195, 8420390]

約数ペア:

[(1, 8420390), (2, 4210195), (5, 1684078), (10, 842039), (11, 765490), (22, 382745), (55, 153098), (110, 76549), (121, 69590), (242, 34795), (605, 13918), (1210, 6959)]