2018219620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{80923}}^1$

素因数の和:81004

約数の個数: 48

約数和(自身を含む): 4486426560

約数和(自身を除く): 2468206940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1247, 2494, 4988, 6235, 12470, 24940, 80923, 161846, 323692, 404615, 809230, 1618460, 2346767, 3479689, 4693534, 6959378, 9387068, 11733835, 13918756, 17398445, 23467670, 34796890, 46935340, 69593780, 100910981, 201821962, 403643924, 504554905, 1009109810, 2018219620]

約数ペア:

[(1, 2018219620), (2, 1009109810), (4, 504554905), (5, 403643924), (10, 201821962), (20, 100910981), (29, 69593780), (43, 46935340), (58, 34796890), (86, 23467670), (116, 17398445), (145, 13918756), (172, 11733835), (215, 9387068), (290, 6959378), (430, 4693534), (580, 3479689), (860, 2346767), (1247, 1618460), (2494, 809230), (4988, 404615), (6235, 323692), (12470, 161846), (24940, 80923)]