31827980

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4091}}^1$

素因数の和:4489

約数の個数: 24

約数和(自身を含む): 67026960

約数和(自身を除く): 35198980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 4091, 7780, 8182, 16364, 20455, 40910, 81820, 1591399, 3182798, 6365596, 7956995, 15913990, 31827980]

約数ペア:

[(1, 31827980), (2, 15913990), (4, 7956995), (5, 6365596), (10, 3182798), (20, 1591399), (389, 81820), (778, 40910), (1556, 20455), (1945, 16364), (3890, 8182), (4091, 7780)]