20039725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 26025120

約数和(自身を除く): 5985395

約数列:

[1, 5, 25, 29, 131, 145, 211, 655, 725, 1055, 3275, 3799, 5275, 6119, 18995, 27641, 30595, 94975, 138205, 152975, 691025, 801589, 4007945, 20039725]

約数ペア:

[(1, 20039725), (5, 4007945), (25, 801589), (29, 691025), (131, 152975), (145, 138205), (211, 94975), (655, 30595), (725, 27641), (1055, 18995), (3275, 6119), (3799, 5275)]