128888288

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:216

約数の個数: 72

約数和(自身を含む): 278310816

約数和(自身を除く): 149422528

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 68, 71, 94, 136, 142, 188, 272, 284, 376, 544, 568, 752, 799, 1136, 1207, 1504, 1598, 2272, 2414, 3196, 3337, 4828, 5041, 6392, 6674, 9656, 10082, 12784, 13348, 19312, 20164, 25568, 26696, 38624, 40328, 53392, 56729, 80656, 85697, 106784, 113458, 161312, 171394, 226916, 236927, 342788, 453832, 473854, 685576, 907664, 947708, 1371152, 1815328, 1895416, 2742304, 3790832, 4027759, 7581664, 8055518, 16111036, 32222072, 64444144, 128888288]

約数ペア:

[(1, 128888288), (2, 64444144), (4, 32222072), (8, 16111036), (16, 8055518), (17, 7581664), (32, 4027759), (34, 3790832), (47, 2742304), (68, 1895416), (71, 1815328), (94, 1371152), (136, 947708), (142, 907664), (188, 685576), (272, 473854), (284, 453832), (376, 342788), (544, 236927), (568, 226916), (752, 171394), (799, 161312), (1136, 113458), (1207, 106784), (1504, 85697), (1598, 80656), (2272, 56729), (2414, 53392), (3196, 40328), (3337, 38624), (4828, 26696), (5041, 25568), (6392, 20164), (6674, 19312), (9656, 13348), (10082, 12784)]