2020038040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{3371}}^1$

素因数の和:3664

約数の個数: 64

約数和(自身を含む): 4632318720

約数和(自身を除く): 2612280680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 211, 284, 355, 422, 568, 710, 844, 1055, 1420, 1688, 2110, 2840, 3371, 4220, 6742, 8440, 13484, 14981, 16855, 26968, 29962, 33710, 59924, 67420, 74905, 119848, 134840, 149810, 239341, 299620, 478682, 599240, 711281, 957364, 1196705, 1422562, 1914728, 2393410, 2845124, 3556405, 4786820, 5690248, 7112810, 9573640, 14225620, 28451240, 50500951, 101001902, 202003804, 252504755, 404007608, 505009510, 1010019020, 2020038040]

約数ペア:

[(1, 2020038040), (2, 1010019020), (4, 505009510), (5, 404007608), (8, 252504755), (10, 202003804), (20, 101001902), (40, 50500951), (71, 28451240), (142, 14225620), (211, 9573640), (284, 7112810), (355, 5690248), (422, 4786820), (568, 3556405), (710, 2845124), (844, 2393410), (1055, 1914728), (1420, 1422562), (1688, 1196705), (2110, 957364), (2840, 711281), (3371, 599240), (4220, 478682), (6742, 299620), (8440, 239341), (13484, 149810), (14981, 134840), (16855, 119848), (26968, 74905), (29962, 67420), (33710, 59924)]