20173940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14207}}^1$

素因数の和:14287

約数の個数: 24

約数和(自身を含む): 42964992

約数和(自身を除く): 22791052

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14207, 28414, 56828, 71035, 142070, 284140, 1008697, 2017394, 4034788, 5043485, 10086970, 20173940]

約数ペア:

[(1, 20173940), (2, 10086970), (4, 5043485), (5, 4034788), (10, 2017394), (20, 1008697), (71, 284140), (142, 142070), (284, 71035), (355, 56828), (710, 28414), (1420, 14207)]