80445020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1061}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 179843328

約数和(自身を除く): 99398308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 223, 340, 446, 892, 1061, 1115, 2122, 2230, 3791, 4244, 4460, 5305, 7582, 10610, 15164, 18037, 18955, 21220, 36074, 37910, 72148, 75820, 90185, 180370, 236603, 360740, 473206, 946412, 1183015, 2366030, 4022251, 4732060, 8044502, 16089004, 20111255, 40222510, 80445020]

約数ペア:

[(1, 80445020), (2, 40222510), (4, 20111255), (5, 16089004), (10, 8044502), (17, 4732060), (20, 4022251), (34, 2366030), (68, 1183015), (85, 946412), (170, 473206), (223, 360740), (340, 236603), (446, 180370), (892, 90185), (1061, 75820), (1115, 72148), (2122, 37910), (2230, 36074), (3791, 21220), (4244, 18955), (4460, 18037), (5305, 15164), (7582, 10610)]