2078459020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{497239}}^1$

素因数の和:497278

約数の個数: 48

約数和(自身を含む): 5012179200

約数和(自身を除く): 2933720180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 497239, 994478, 1988956, 2486195, 4972390, 5469629, 9447541, 9944780, 10939258, 18895082, 21878516, 27348145, 37790164, 47237705, 54696290, 94475410, 103922951, 109392580, 188950820, 207845902, 415691804, 519614755, 1039229510, 2078459020]

約数ペア:

[(1, 2078459020), (2, 1039229510), (4, 519614755), (5, 415691804), (10, 207845902), (11, 188950820), (19, 109392580), (20, 103922951), (22, 94475410), (38, 54696290), (44, 47237705), (55, 37790164), (76, 27348145), (95, 21878516), (110, 18895082), (190, 10939258), (209, 9944780), (220, 9447541), (380, 5469629), (418, 4972390), (836, 2486195), (1045, 1988956), (2090, 994478), (4180, 497239)]