1644641980

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{267857}}^1$

素因数の和:268173

約数の個数: 24

約数和(自身を含む): 3465011088

約数和(自身を除く): 1820369108

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 267857, 535714, 1071428, 1339285, 2678570, 5357140, 82232099, 164464198, 328928396, 411160495, 822320990, 1644641980]

約数ペア:

[(1, 1644641980), (2, 822320990), (4, 411160495), (5, 328928396), (10, 164464198), (20, 82232099), (307, 5357140), (614, 2678570), (1228, 1339285), (1535, 1071428), (3070, 535714), (6140, 267857)]