19470820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51239}}^1$

素因数の和:51267

約数の個数: 24

約数和(自身を含む): 43041600

約数和(自身を除く): 23570780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51239, 102478, 204956, 256195, 512390, 973541, 1024780, 1947082, 3894164, 4867705, 9735410, 19470820]

約数ペア:

[(1, 19470820), (2, 9735410), (4, 4867705), (5, 3894164), (10, 1947082), (19, 1024780), (20, 973541), (38, 512390), (76, 256195), (95, 204956), (190, 102478), (380, 51239)]