20765790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1289}}^1$

素因数の和:1481

約数の個数: 48

約数和(自身を含む): 54334800

約数和(自身を除く): 33569010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 179, 358, 537, 895, 1074, 1289, 1611, 1790, 2578, 2685, 3222, 3867, 5370, 6445, 7734, 8055, 11601, 12890, 16110, 19335, 23202, 38670, 58005, 116010, 230731, 461462, 692193, 1153655, 1384386, 2076579, 2307310, 3460965, 4153158, 6921930, 10382895, 20765790]

約数ペア:

[(1, 20765790), (2, 10382895), (3, 6921930), (5, 4153158), (6, 3460965), (9, 2307310), (10, 2076579), (15, 1384386), (18, 1153655), (30, 692193), (45, 461462), (90, 230731), (179, 116010), (358, 58005), (537, 38670), (895, 23202), (1074, 19335), (1289, 16110), (1611, 12890), (1790, 11601), (2578, 8055), (2685, 7734), (3222, 6445), (3867, 5370)]