389619340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1770997}}^1$

素因数の和:1771017

約数の個数: 24

約数和(自身を含む): 892582992

約数和(自身を除く): 502963652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1770997, 3541994, 7083988, 8854985, 17709970, 19480967, 35419940, 38961934, 77923868, 97404835, 194809670, 389619340]

約数ペア:

[(1, 389619340), (2, 194809670), (4, 97404835), (5, 77923868), (10, 38961934), (11, 35419940), (20, 19480967), (22, 17709970), (44, 8854985), (55, 7083988), (110, 3541994), (220, 1770997)]