20326725

素因数分解:

$3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1558

約数の個数: 36

約数和(自身を含む): 37029252

約数和(自身を除く): 16702527

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 183, 225, 305, 549, 915, 1481, 1525, 2745, 4443, 4575, 7405, 13329, 13725, 22215, 37025, 66645, 90341, 111075, 271023, 333225, 451705, 813069, 1355115, 2258525, 4065345, 6775575, 20326725]

約数ペア:

[(1, 20326725), (3, 6775575), (5, 4065345), (9, 2258525), (15, 1355115), (25, 813069), (45, 451705), (61, 333225), (75, 271023), (183, 111075), (225, 90341), (305, 66645), (549, 37025), (915, 22215), (1481, 13725), (1525, 13329), (2745, 7405), (4443, 4575)]