51191980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5009}}^1$

素因数の和:5098

約数の個数: 48

約数和(自身を含む): 124568640

約数和(自身を除く): 73376660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5009, 5110, 10018, 10220, 20036, 25045, 35063, 50090, 70126, 100180, 140252, 175315, 350630, 365657, 701260, 731314, 1462628, 1828285, 2559599, 3656570, 5119198, 7313140, 10238396, 12797995, 25595990, 51191980]

約数ペア:

[(1, 51191980), (2, 25595990), (4, 12797995), (5, 10238396), (7, 7313140), (10, 5119198), (14, 3656570), (20, 2559599), (28, 1828285), (35, 1462628), (70, 731314), (73, 701260), (140, 365657), (146, 350630), (292, 175315), (365, 140252), (511, 100180), (730, 70126), (1022, 50090), (1460, 35063), (2044, 25045), (2555, 20036), (5009, 10220), (5110, 10018)]