20452725

素因数分解:

$3^2\times 5^2\times {\mathrm{90901}}^1$

素因数の和:90917

約数の個数: 18

約数和(自身を含む): 36633506

約数和(自身を除く): 16180781

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90901, 272703, 454505, 818109, 1363515, 2272525, 4090545, 6817575, 20452725]

約数ペア:

[(1, 20452725), (3, 6817575), (5, 4090545), (9, 2272525), (15, 1363515), (25, 818109), (45, 454505), (75, 272703), (225, 90901)]