917886820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{421049}}^1$

素因数の和:421167

約数の個数: 24

約数和(自身を含む): 1945251000

約数和(自身を除く): 1027364180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 421049, 842098, 1684196, 2105245, 4210490, 8420980, 45894341, 91788682, 183577364, 229471705, 458943410, 917886820]

約数ペア:

[(1, 917886820), (2, 458943410), (4, 229471705), (5, 183577364), (10, 91788682), (20, 45894341), (109, 8420980), (218, 4210490), (436, 2105245), (545, 1684196), (1090, 842098), (2180, 421049)]