20023880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10651}}^1$

素因数の和:10709

約数の個数: 32

約数和(自身を含む): 46016640

約数和(自身を除く): 25992760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10651, 21302, 42604, 53255, 85208, 106510, 213020, 426040, 500597, 1001194, 2002388, 2502985, 4004776, 5005970, 10011940, 20023880]

約数ペア:

[(1, 20023880), (2, 10011940), (4, 5005970), (5, 4004776), (8, 2502985), (10, 2002388), (20, 1001194), (40, 500597), (47, 426040), (94, 213020), (188, 106510), (235, 85208), (376, 53255), (470, 42604), (940, 21302), (1880, 10651)]