3949850

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:610

約数の個数: 24

約数和(自身を含む): 7402428

約数和(自身を除く): 3452578

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 401, 802, 985, 1970, 2005, 4010, 4925, 9850, 10025, 20050, 78997, 157994, 394985, 789970, 1974925, 3949850]

約数ペア:

[(1, 3949850), (2, 1974925), (5, 789970), (10, 394985), (25, 157994), (50, 78997), (197, 20050), (394, 10025), (401, 9850), (802, 4925), (985, 4010), (1970, 2005)]