9939880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5779}}^1$

素因数の和:5833

約数の個数: 32

約数和(自身を含む): 22888800

約数和(自身を除く): 12948920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5779, 11558, 23116, 28895, 46232, 57790, 115580, 231160, 248497, 496994, 993988, 1242485, 1987976, 2484970, 4969940, 9939880]

約数ペア:

[(1, 9939880), (2, 4969940), (4, 2484970), (5, 1987976), (8, 1242485), (10, 993988), (20, 496994), (40, 248497), (43, 231160), (86, 115580), (172, 57790), (215, 46232), (344, 28895), (430, 23116), (860, 11558), (1720, 5779)]