643161970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{307733}}^1$

素因数の和:307770

約数の個数: 32

約数和(自身を含む): 1329410880

約数和(自身を除く): 686248910

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 307733, 615466, 1538665, 3077330, 3385063, 5846927, 6770126, 11693854, 16925315, 29234635, 33850630, 58469270, 64316197, 128632394, 321580985, 643161970]

約数ペア:

[(1, 643161970), (2, 321580985), (5, 128632394), (10, 64316197), (11, 58469270), (19, 33850630), (22, 29234635), (38, 16925315), (55, 11693854), (95, 6770126), (110, 5846927), (190, 3385063), (209, 3077330), (418, 1538665), (1045, 615466), (2090, 307733)]