42212980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 93053520

約数和(自身を除く): 50840540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 580, 730, 997, 1460, 1994, 2117, 3988, 4234, 4985, 8468, 9970, 10585, 19940, 21170, 28913, 42340, 57826, 72781, 115652, 144565, 145562, 289130, 291124, 363905, 578260, 727810, 1455620, 2110649, 4221298, 8442596, 10553245, 21106490, 42212980]

約数ペア:

[(1, 42212980), (2, 21106490), (4, 10553245), (5, 8442596), (10, 4221298), (20, 2110649), (29, 1455620), (58, 727810), (73, 578260), (116, 363905), (145, 291124), (146, 289130), (290, 145562), (292, 144565), (365, 115652), (580, 72781), (730, 57826), (997, 42340), (1460, 28913), (1994, 21170), (2117, 19940), (3988, 10585), (4234, 9970), (4985, 8468)]