1921820

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{313}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 4061904

約数和(自身を除く): 2140084

約数列:

[1, 2, 4, 5, 10, 20, 307, 313, 614, 626, 1228, 1252, 1535, 1565, 3070, 3130, 6140, 6260, 96091, 192182, 384364, 480455, 960910, 1921820]

約数ペア:

[(1, 1921820), (2, 960910), (4, 480455), (5, 384364), (10, 192182), (20, 96091), (307, 6260), (313, 6140), (614, 3130), (626, 3070), (1228, 1565), (1252, 1535)]