85457020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5471}}^1$

素因数の和:5562

約数の個数: 48

約数和(自身を含む): 198567936

約数和(自身を除く): 113110916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 5471, 7810, 10942, 15620, 21884, 27355, 54710, 60181, 109420, 120362, 240724, 300905, 388441, 601810, 776882, 1203620, 1553764, 1942205, 3884410, 4272851, 7768820, 8545702, 17091404, 21364255, 42728510, 85457020]

約数ペア:

[(1, 85457020), (2, 42728510), (4, 21364255), (5, 17091404), (10, 8545702), (11, 7768820), (20, 4272851), (22, 3884410), (44, 1942205), (55, 1553764), (71, 1203620), (110, 776882), (142, 601810), (220, 388441), (284, 300905), (355, 240724), (710, 120362), (781, 109420), (1420, 60181), (1562, 54710), (3124, 27355), (3905, 21884), (5471, 15620), (7810, 10942)]