128424880

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11549}}^1$

素因数の和:11701

約数の個数: 40

約数和(自身を含む): 300762000

約数和(自身を除く): 172337120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 11549, 23098, 46196, 57745, 92392, 115490, 184784, 230980, 461960, 923920, 1605311, 3210622, 6421244, 8026555, 12842488, 16053110, 25684976, 32106220, 64212440, 128424880]

約数ペア:

[(1, 128424880), (2, 64212440), (4, 32106220), (5, 25684976), (8, 16053110), (10, 12842488), (16, 8026555), (20, 6421244), (40, 3210622), (80, 1605311), (139, 923920), (278, 461960), (556, 230980), (695, 184784), (1112, 115490), (1390, 92392), (2224, 57745), (2780, 46196), (5560, 23098), (11120, 11549)]