2021625400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{165707}}^1$

素因数の和:165784

約数の個数: 48

約数和(自身を含む): 4777361640

約数和(自身を除く): 2755736240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 200, 244, 305, 488, 610, 1220, 1525, 2440, 3050, 6100, 12200, 165707, 331414, 662828, 828535, 1325656, 1657070, 3314140, 4142675, 6628280, 8285350, 10108127, 16570700, 20216254, 33141400, 40432508, 50540635, 80865016, 101081270, 202162540, 252703175, 404325080, 505406350, 1010812700, 2021625400]

約数ペア:

[(1, 2021625400), (2, 1010812700), (4, 505406350), (5, 404325080), (8, 252703175), (10, 202162540), (20, 101081270), (25, 80865016), (40, 50540635), (50, 40432508), (61, 33141400), (100, 20216254), (122, 16570700), (200, 10108127), (244, 8285350), (305, 6628280), (488, 4142675), (610, 3314140), (1220, 1657070), (1525, 1325656), (2440, 828535), (3050, 662828), (6100, 331414), (12200, 165707)]