209742320

素因数分解:

$2^4\times 5^1\times {\mathrm{2621779}}^1$

素因数の和:2621792

約数の個数: 20

約数和(自身を含む): 487651080

約数和(自身を除く): 277908760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2621779, 5243558, 10487116, 13108895, 20974232, 26217790, 41948464, 52435580, 104871160, 209742320]

約数ペア:

[(1, 209742320), (2, 104871160), (4, 52435580), (5, 41948464), (8, 26217790), (10, 20974232), (16, 13108895), (20, 10487116), (40, 5243558), (80, 2621779)]