90180225

素因数分解:

$3^2\times 5^2\times {\mathrm{487}}^1\times {\mathrm{823}}^1$

素因数の和:1326

約数の個数: 36

約数和(自身を含む): 162051136

約数和(自身を除く): 71870911

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 487, 823, 1461, 2435, 2469, 4115, 4383, 7305, 7407, 12175, 12345, 20575, 21915, 36525, 37035, 61725, 109575, 185175, 400801, 1202403, 2004005, 3607209, 6012015, 10020025, 18036045, 30060075, 90180225]

約数ペア:

[(1, 90180225), (3, 30060075), (5, 18036045), (9, 10020025), (15, 6012015), (25, 3607209), (45, 2004005), (75, 1202403), (225, 400801), (487, 185175), (823, 109575), (1461, 61725), (2435, 37035), (2469, 36525), (4115, 21915), (4383, 20575), (7305, 12345), (7407, 12175)]