209972875

素因数分解:

$5^3\times 7^1\times {\mathrm{317}}^1\times {\mathrm{757}}^1$

素因数の和:1096

約数の個数: 32

約数和(自身を含む): 300822912

約数和(自身を除く): 90850037

約数列:

[1, 5, 7, 25, 35, 125, 175, 317, 757, 875, 1585, 2219, 3785, 5299, 7925, 11095, 18925, 26495, 39625, 55475, 94625, 132475, 239969, 277375, 662375, 1199845, 1679783, 5999225, 8398915, 29996125, 41994575, 209972875]

約数ペア:

[(1, 209972875), (5, 41994575), (7, 29996125), (25, 8398915), (35, 5999225), (125, 1679783), (175, 1199845), (317, 662375), (757, 277375), (875, 239969), (1585, 132475), (2219, 94625), (3785, 55475), (5299, 39625), (7925, 26495), (11095, 18925)]