12987225

素因数分解:

$3^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:506

約数の個数: 36

約数和(自身を含む): 23459436

約数和(自身を除く): 10472211

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 197, 225, 293, 591, 879, 985, 1465, 1773, 2637, 2955, 4395, 4925, 7325, 8865, 13185, 14775, 21975, 44325, 57721, 65925, 173163, 288605, 519489, 865815, 1443025, 2597445, 4329075, 12987225]

約数ペア:

[(1, 12987225), (3, 4329075), (5, 2597445), (9, 1443025), (15, 865815), (25, 519489), (45, 288605), (75, 173163), (197, 65925), (225, 57721), (293, 44325), (591, 21975), (879, 14775), (985, 13185), (1465, 8865), (1773, 7325), (2637, 4925), (2955, 4395)]