128901568

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1307}}^1$

素因数の和:1409

約数の個数: 56

約数和(自身を含む): 271101312

約数和(自身を除く): 142199744

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 67, 92, 134, 184, 268, 368, 536, 736, 1072, 1307, 1472, 1541, 2144, 2614, 3082, 4288, 5228, 6164, 10456, 12328, 20912, 24656, 30061, 41824, 49312, 60122, 83648, 87569, 98624, 120244, 175138, 240488, 350276, 480976, 700552, 961952, 1401104, 1923904, 2014087, 2802208, 4028174, 5604416, 8056348, 16112696, 32225392, 64450784, 128901568]

約数ペア:

[(1, 128901568), (2, 64450784), (4, 32225392), (8, 16112696), (16, 8056348), (23, 5604416), (32, 4028174), (46, 2802208), (64, 2014087), (67, 1923904), (92, 1401104), (134, 961952), (184, 700552), (268, 480976), (368, 350276), (536, 240488), (736, 175138), (1072, 120244), (1307, 98624), (1472, 87569), (1541, 83648), (2144, 60122), (2614, 49312), (3082, 41824), (4288, 30061), (5228, 24656), (6164, 20912), (10456, 12328)]