1980451278

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{497851}}^1$

素因数の和:497889

約数の個数: 48

約数和(自身を含む): 4892889456

約数和(自身を除く): 2912438178

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 497851, 995702, 1493553, 2987106, 4480659, 6472063, 8463467, 8961318, 12944126, 16926934, 19416189, 25390401, 38832378, 50780802, 58248567, 76171203, 110025071, 116497134, 152342406, 220050142, 330075213, 660150426, 990225639, 1980451278]

約数ペア:

[(1, 1980451278), (2, 990225639), (3, 660150426), (6, 330075213), (9, 220050142), (13, 152342406), (17, 116497134), (18, 110025071), (26, 76171203), (34, 58248567), (39, 50780802), (51, 38832378), (78, 25390401), (102, 19416189), (117, 16926934), (153, 12944126), (221, 8961318), (234, 8463467), (306, 6472063), (442, 4480659), (663, 2987106), (1326, 1493553), (1989, 995702), (3978, 497851)]