20400138

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{523}}^1$

素因数の和:739

約数の個数: 48

約数和(自身を含む): 48555936

約数和(自身を除く): 28155798

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 197, 198, 394, 523, 591, 1046, 1182, 1569, 1773, 2167, 3138, 3546, 4334, 4707, 5753, 6501, 9414, 11506, 13002, 17259, 19503, 34518, 39006, 51777, 103031, 103554, 206062, 309093, 618186, 927279, 1133341, 1854558, 2266682, 3400023, 6800046, 10200069, 20400138]

約数ペア:

[(1, 20400138), (2, 10200069), (3, 6800046), (6, 3400023), (9, 2266682), (11, 1854558), (18, 1133341), (22, 927279), (33, 618186), (66, 309093), (99, 206062), (197, 103554), (198, 103031), (394, 51777), (523, 39006), (591, 34518), (1046, 19503), (1182, 17259), (1569, 13002), (1773, 11506), (2167, 9414), (3138, 6501), (3546, 5753), (4334, 4707)]