291239502020

素因数分解:

$2^2\times 5^1\times {\mathrm{4021}}^1\times {\mathrm{3621481}}^1$

素因数の和:3625511

約数の個数: 24

約数和(自身を含む): 611755225368

約数和(自身を除く): 320515723348

約数列:

[1, 2, 4, 5, 10, 20, 4021, 8042, 16084, 20105, 40210, 80420, 3621481, 7242962, 14485924, 18107405, 36214810, 72429620, 14561975101, 29123950202, 58247900404, 72809875505, 145619751010, 291239502020]

約数ペア:

[(1, 291239502020), (2, 145619751010), (4, 72809875505), (5, 58247900404), (10, 29123950202), (20, 14561975101), (4021, 72429620), (8042, 36214810), (16084, 18107405), (20105, 14485924), (40210, 7242962), (80420, 3621481)]