81152540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{10937}}^1$

素因数の和:11006

約数の個数: 48

約数和(自身を含む): 198459072

約数和(自身を除く): 117306532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 10937, 21874, 43748, 54685, 76559, 109370, 153118, 218740, 306236, 382795, 579661, 765590, 1159322, 1531180, 2318644, 2898305, 4057627, 5796610, 8115254, 11593220, 16230508, 20288135, 40576270, 81152540]

約数ペア:

[(1, 81152540), (2, 40576270), (4, 20288135), (5, 16230508), (7, 11593220), (10, 8115254), (14, 5796610), (20, 4057627), (28, 2898305), (35, 2318644), (53, 1531180), (70, 1159322), (106, 765590), (140, 579661), (212, 382795), (265, 306236), (371, 218740), (530, 153118), (742, 109370), (1060, 76559), (1484, 54685), (1855, 43748), (3710, 21874), (7420, 10937)]