20313225

素因数分解:

$3^2\times 5^2\times {\mathrm{90281}}^1$

素因数の和:90297

約数の個数: 18

約数和(自身を含む): 36383646

約数和(自身を除く): 16070421

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90281, 270843, 451405, 812529, 1354215, 2257025, 4062645, 6771075, 20313225]

約数ペア:

[(1, 20313225), (3, 6771075), (5, 4062645), (9, 2257025), (15, 1354215), (25, 812529), (45, 451405), (75, 270843), (225, 90281)]