815604080

素因数分解:

$2^4\times 5^1\times {\mathrm{10195051}}^1$

素因数の和:10195064

約数の個数: 20

約数和(自身を含む): 1896279672

約数和(自身を除く): 1080675592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10195051, 20390102, 40780204, 50975255, 81560408, 101950510, 163120816, 203901020, 407802040, 815604080]

約数ペア:

[(1, 815604080), (2, 407802040), (4, 203901020), (5, 163120816), (8, 101950510), (10, 81560408), (16, 50975255), (20, 40780204), (40, 20390102), (80, 10195051)]