20310975

素因数分解:

$3^2\times 5^2\times {\mathrm{90271}}^1$

素因数の和:90287

約数の個数: 18

約数和(自身を含む): 36379616

約数和(自身を除く): 16068641

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90271, 270813, 451355, 812439, 1354065, 2256775, 4062195, 6770325, 20310975]

約数ペア:

[(1, 20310975), (3, 6770325), (5, 4062195), (9, 2256775), (15, 1354065), (25, 812439), (45, 451355), (75, 270813), (225, 90271)]