2018982640

素因数分解:

$2^4\times 5^1\times {\mathrm{25237283}}^1$

素因数の和:25237296

約数の個数: 20

約数和(自身を含む): 4694134824

約数和(自身を除く): 2675152184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25237283, 50474566, 100949132, 126186415, 201898264, 252372830, 403796528, 504745660, 1009491320, 2018982640]

約数ペア:

[(1, 2018982640), (2, 1009491320), (4, 504745660), (5, 403796528), (8, 252372830), (10, 201898264), (16, 126186415), (20, 100949132), (40, 50474566), (80, 25237283)]