128729103680

素因数分解:

$2^6\times 5^1\times {\mathrm{887}}^1\times {\mathrm{453527}}^1$

素因数の和:454431

約数の個数: 56

約数和(自身を含む): 306882442368

約数和(自身を除く): 178153338688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 887, 1774, 3548, 4435, 7096, 8870, 14192, 17740, 28384, 35480, 56768, 70960, 141920, 283840, 453527, 907054, 1814108, 2267635, 3628216, 4535270, 7256432, 9070540, 14512864, 18141080, 29025728, 36282160, 72564320, 145128640, 402278449, 804556898, 1609113796, 2011392245, 3218227592, 4022784490, 6436455184, 8045568980, 12872910368, 16091137960, 25745820736, 32182275920, 64364551840, 128729103680]

約数ペア:

[(1, 128729103680), (2, 64364551840), (4, 32182275920), (5, 25745820736), (8, 16091137960), (10, 12872910368), (16, 8045568980), (20, 6436455184), (32, 4022784490), (40, 3218227592), (64, 2011392245), (80, 1609113796), (160, 804556898), (320, 402278449), (887, 145128640), (1774, 72564320), (3548, 36282160), (4435, 29025728), (7096, 18141080), (8870, 14512864), (14192, 9070540), (17740, 7256432), (28384, 4535270), (35480, 3628216), (56768, 2267635), (70960, 1814108), (141920, 907054), (283840, 453527)]