128987880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{153557}}^1$

素因数の和:153578

約数の個数: 64

約数和(自身を含む): 442247040

約数和(自身を除く): 313259160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 153557, 307114, 460671, 614228, 767785, 921342, 1074899, 1228456, 1535570, 1842684, 2149798, 2303355, 3071140, 3224697, 3685368, 4299596, 4606710, 5374495, 6142280, 6449394, 8599192, 9213420, 10748990, 12898788, 16123485, 18426840, 21497980, 25797576, 32246970, 42995960, 64493940, 128987880]

約数ペア:

[(1, 128987880), (2, 64493940), (3, 42995960), (4, 32246970), (5, 25797576), (6, 21497980), (7, 18426840), (8, 16123485), (10, 12898788), (12, 10748990), (14, 9213420), (15, 8599192), (20, 6449394), (21, 6142280), (24, 5374495), (28, 4606710), (30, 4299596), (35, 3685368), (40, 3224697), (42, 3071140), (56, 2303355), (60, 2149798), (70, 1842684), (84, 1535570), (105, 1228456), (120, 1074899), (140, 921342), (168, 767785), (210, 614228), (280, 460671), (420, 307114), (840, 153557)]