28451725

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 36459720

約数和(自身を除く): 8007995

約数列:

[1, 5, 25, 53, 109, 197, 265, 545, 985, 1325, 2725, 4925, 5777, 10441, 21473, 28885, 52205, 107365, 144425, 261025, 536825, 1138069, 5690345, 28451725]

約数ペア:

[(1, 28451725), (5, 5690345), (25, 1138069), (53, 536825), (109, 261025), (197, 144425), (265, 107365), (545, 52205), (985, 28885), (1325, 21473), (2725, 10441), (4925, 5777)]