21755640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181297}}^1$

素因数の和:181311

約数の個数: 32

約数和(自身を含む): 65267280

約数和(自身を除く): 43511640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181297, 362594, 543891, 725188, 906485, 1087782, 1450376, 1812970, 2175564, 2719455, 3625940, 4351128, 5438910, 7251880, 10877820, 21755640]

約数ペア:

[(1, 21755640), (2, 10877820), (3, 7251880), (4, 5438910), (5, 4351128), (6, 3625940), (8, 2719455), (10, 2175564), (12, 1812970), (15, 1450376), (20, 1087782), (24, 906485), (30, 725188), (40, 543891), (60, 362594), (120, 181297)]