31036940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1987}}^1$

素因数の和:2078

約数の個数: 48

約数和(自身を含む): 72140544

約数和(自身を除く): 41103604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 1987, 3124, 3905, 3974, 7810, 7948, 9935, 15620, 19870, 21857, 39740, 43714, 87428, 109285, 141077, 218570, 282154, 437140, 564308, 705385, 1410770, 1551847, 2821540, 3103694, 6207388, 7759235, 15518470, 31036940]

約数ペア:

[(1, 31036940), (2, 15518470), (4, 7759235), (5, 6207388), (10, 3103694), (11, 2821540), (20, 1551847), (22, 1410770), (44, 705385), (55, 564308), (71, 437140), (110, 282154), (142, 218570), (220, 141077), (284, 109285), (355, 87428), (710, 43714), (781, 39740), (1420, 21857), (1562, 19870), (1987, 15620), (3124, 9935), (3905, 7948), (3974, 7810)]