81635260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{811}}^1$

素因数の和:1546

約数の個数: 48

約数和(自身を含む): 196439040

約数和(自身を除く): 114803780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 719, 811, 1438, 1622, 2876, 3244, 3595, 4055, 5033, 5677, 7190, 8110, 10066, 11354, 14380, 16220, 20132, 22708, 25165, 28385, 50330, 56770, 100660, 113540, 583109, 1166218, 2332436, 2915545, 4081763, 5831090, 8163526, 11662180, 16327052, 20408815, 40817630, 81635260]

約数ペア:

[(1, 81635260), (2, 40817630), (4, 20408815), (5, 16327052), (7, 11662180), (10, 8163526), (14, 5831090), (20, 4081763), (28, 2915545), (35, 2332436), (70, 1166218), (140, 583109), (719, 113540), (811, 100660), (1438, 56770), (1622, 50330), (2876, 28385), (3244, 25165), (3595, 22708), (4055, 20132), (5033, 16220), (5677, 14380), (7190, 11354), (8110, 10066)]