20188649872

素因数分解:

$2^4\times {\mathrm{11117}}^1\times {\mathrm{113501}}^1$

素因数の和:124626

約数の個数: 20

約数和(自身を含む): 39119372316

約数和(自身を除く): 18930722444

約数列:

[1, 2, 4, 8, 16, 11117, 22234, 44468, 88936, 113501, 177872, 227002, 454004, 908008, 1816016, 1261790617, 2523581234, 5047162468, 10094324936, 20188649872]

約数ペア:

[(1, 20188649872), (2, 10094324936), (4, 5047162468), (8, 2523581234), (16, 1261790617), (11117, 1816016), (22234, 908008), (44468, 454004), (88936, 227002), (113501, 177872)]