20431235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 28055808

約数和(自身を除く): 7624573

約数列:

[1, 5, 11, 43, 53, 55, 163, 215, 265, 473, 583, 815, 1793, 2279, 2365, 2915, 7009, 8639, 8965, 11395, 25069, 35045, 43195, 77099, 95029, 125345, 371477, 385495, 475145, 1857385, 4086247, 20431235]

約数ペア:

[(1, 20431235), (5, 4086247), (11, 1857385), (43, 475145), (53, 385495), (55, 371477), (163, 125345), (215, 95029), (265, 77099), (473, 43195), (583, 35045), (815, 25069), (1793, 11395), (2279, 8965), (2365, 8639), (2915, 7009)]