205128225

素因数分解:

$3^2\times 5^2\times {\mathrm{911681}}^1$

素因数の和:911697

約数の個数: 18

約数和(自身を含む): 367407846

約数和(自身を除く): 162279621

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 911681, 2735043, 4558405, 8205129, 13675215, 22792025, 41025645, 68376075, 205128225]

約数ペア:

[(1, 205128225), (3, 68376075), (5, 41025645), (9, 22792025), (15, 13675215), (25, 8205129), (45, 4558405), (75, 2735043), (225, 911681)]