667030180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1\times {\mathrm{2143}}^1$

素因数の和:2428

約数の個数: 48

約数和(自身を含む): 1426360320

約数和(自身を除く): 759330140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 197, 316, 394, 395, 788, 790, 985, 1580, 1970, 2143, 3940, 4286, 8572, 10715, 15563, 21430, 31126, 42860, 62252, 77815, 155630, 169297, 311260, 338594, 422171, 677188, 844342, 846485, 1688684, 1692970, 2110855, 3385940, 4221710, 8443420, 33351509, 66703018, 133406036, 166757545, 333515090, 667030180]

約数ペア:

[(1, 667030180), (2, 333515090), (4, 166757545), (5, 133406036), (10, 66703018), (20, 33351509), (79, 8443420), (158, 4221710), (197, 3385940), (316, 2110855), (394, 1692970), (395, 1688684), (788, 846485), (790, 844342), (985, 677188), (1580, 422171), (1970, 338594), (2143, 311260), (3940, 169297), (4286, 155630), (8572, 77815), (10715, 62252), (15563, 42860), (21430, 31126)]