1311420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1987}}^1$

素因数の和:2010

約数の個数: 48

約数和(自身を含む): 4007808

約数和(自身を除く): 2696388

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 1987, 3974, 5961, 7948, 9935, 11922, 19870, 21857, 23844, 29805, 39740, 43714, 59610, 65571, 87428, 109285, 119220, 131142, 218570, 262284, 327855, 437140, 655710, 1311420]

約数ペア:

[(1, 1311420), (2, 655710), (3, 437140), (4, 327855), (5, 262284), (6, 218570), (10, 131142), (11, 119220), (12, 109285), (15, 87428), (20, 65571), (22, 59610), (30, 43714), (33, 39740), (44, 29805), (55, 23844), (60, 21857), (66, 19870), (110, 11922), (132, 9935), (165, 7948), (220, 5961), (330, 3974), (660, 1987)]