2012020940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{640771}}^1$

素因数の和:640937

約数の個数: 24

約数和(自身を含む): 4252162992

約数和(自身を除く): 2240142052

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 640771, 1281542, 2563084, 3203855, 6407710, 12815420, 100601047, 201202094, 402404188, 503005235, 1006010470, 2012020940]

約数ペア:

[(1, 2012020940), (2, 1006010470), (4, 503005235), (5, 402404188), (10, 201202094), (20, 100601047), (157, 12815420), (314, 6407710), (628, 3203855), (785, 2563084), (1570, 1281542), (3140, 640771)]