18982640

素因数分解:

$2^4\times 5^1\times {\mathrm{237283}}^1$

素因数の和:237296

約数の個数: 20

約数和(自身を含む): 44134824

約数和(自身を除く): 25152184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237283, 474566, 949132, 1186415, 1898264, 2372830, 3796528, 4745660, 9491320, 18982640]

約数ペア:

[(1, 18982640), (2, 9491320), (4, 4745660), (5, 3796528), (8, 2372830), (10, 1898264), (16, 1186415), (20, 949132), (40, 474566), (80, 237283)]