661946260

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{203051}}^1$

素因数の和:203223

約数の個数: 24

約数和(自身を含む): 1398622176

約数和(自身を除く): 736675916

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 203051, 406102, 812204, 1015255, 2030510, 4061020, 33097313, 66194626, 132389252, 165486565, 330973130, 661946260]

約数ペア:

[(1, 661946260), (2, 330973130), (4, 165486565), (5, 132389252), (10, 66194626), (20, 33097313), (163, 4061020), (326, 2030510), (652, 1015255), (815, 812204), (1630, 406102), (3260, 203051)]