87172825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{977}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 112055328

約数和(自身を除く): 24882503

約数列:

[1, 5, 25, 43, 83, 215, 415, 977, 1075, 2075, 3569, 4885, 17845, 24425, 42011, 81091, 89225, 210055, 405455, 1050275, 2027275, 3486913, 17434565, 87172825]

約数ペア:

[(1, 87172825), (5, 17434565), (25, 3486913), (43, 2027275), (83, 1050275), (215, 405455), (415, 210055), (977, 89225), (1075, 81091), (2075, 42011), (3569, 24425), (4885, 17845)]