81910180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{5557}}^1$

素因数の和:5644

約数の個数: 48

約数和(自身を含む): 190483776

約数和(自身を除く): 108573596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 5557, 7370, 11114, 14740, 22228, 27785, 55570, 61127, 111140, 122254, 244508, 305635, 372319, 611270, 744638, 1222540, 1489276, 1861595, 3723190, 4095509, 7446380, 8191018, 16382036, 20477545, 40955090, 81910180]

約数ペア:

[(1, 81910180), (2, 40955090), (4, 20477545), (5, 16382036), (10, 8191018), (11, 7446380), (20, 4095509), (22, 3723190), (44, 1861595), (55, 1489276), (67, 1222540), (110, 744638), (134, 611270), (220, 372319), (268, 305635), (335, 244508), (670, 122254), (737, 111140), (1340, 61127), (1474, 55570), (2948, 27785), (3685, 22228), (5557, 14740), (7370, 11114)]