128626840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{733}}^1$

素因数の和:892

約数の個数: 64

約数和(自身を含む): 299648160

約数和(自身を除く): 171021320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 107, 164, 205, 214, 328, 410, 428, 535, 733, 820, 856, 1070, 1466, 1640, 2140, 2932, 3665, 4280, 4387, 5864, 7330, 8774, 14660, 17548, 21935, 29320, 30053, 35096, 43870, 60106, 78431, 87740, 120212, 150265, 156862, 175480, 240424, 300530, 313724, 392155, 601060, 627448, 784310, 1202120, 1568620, 3137240, 3215671, 6431342, 12862684, 16078355, 25725368, 32156710, 64313420, 128626840]

約数ペア:

[(1, 128626840), (2, 64313420), (4, 32156710), (5, 25725368), (8, 16078355), (10, 12862684), (20, 6431342), (40, 3215671), (41, 3137240), (82, 1568620), (107, 1202120), (164, 784310), (205, 627448), (214, 601060), (328, 392155), (410, 313724), (428, 300530), (535, 240424), (733, 175480), (820, 156862), (856, 150265), (1070, 120212), (1466, 87740), (1640, 78431), (2140, 60106), (2932, 43870), (3665, 35096), (4280, 30053), (4387, 29320), (5864, 21935), (7330, 17548), (8774, 14660)]