128304680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1783}}^1$

素因数の和:2058

約数の個数: 64

約数和(自身を含む): 331395840

約数和(自身を除く): 203091160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1783, 1799, 2056, 2570, 3566, 3598, 5140, 7132, 7196, 8915, 8995, 10280, 12481, 14264, 14392, 17830, 17990, 24962, 35660, 35980, 49924, 62405, 71320, 71960, 99848, 124810, 249620, 458231, 499240, 916462, 1832924, 2291155, 3207617, 3665848, 4582310, 6415234, 9164620, 12830468, 16038085, 18329240, 25660936, 32076170, 64152340, 128304680]

約数ペア:

[(1, 128304680), (2, 64152340), (4, 32076170), (5, 25660936), (7, 18329240), (8, 16038085), (10, 12830468), (14, 9164620), (20, 6415234), (28, 4582310), (35, 3665848), (40, 3207617), (56, 2291155), (70, 1832924), (140, 916462), (257, 499240), (280, 458231), (514, 249620), (1028, 124810), (1285, 99848), (1783, 71960), (1799, 71320), (2056, 62405), (2570, 49924), (3566, 35980), (3598, 35660), (5140, 24962), (7132, 17990), (7196, 17830), (8915, 14392), (8995, 14264), (10280, 12481)]