128406712

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 128

約数和(自身を含む): 317952000

約数和(自身を除く): 189545288

約数列:

[1, 2, 4, 7, 8, 14, 17, 19, 28, 31, 34, 38, 56, 62, 68, 76, 119, 124, 133, 136, 152, 217, 229, 238, 248, 266, 323, 434, 458, 476, 527, 532, 589, 646, 868, 916, 952, 1054, 1064, 1178, 1292, 1603, 1736, 1832, 2108, 2261, 2356, 2584, 3206, 3689, 3893, 4123, 4216, 4351, 4522, 4712, 6412, 7099, 7378, 7786, 8246, 8702, 9044, 10013, 12824, 14198, 14756, 15572, 16492, 17404, 18088, 20026, 27251, 28396, 29512, 30457, 31144, 32984, 34808, 40052, 49693, 54502, 56792, 60914, 70091, 73967, 80104, 99386, 109004, 120683, 121828, 134881, 140182, 147934, 198772, 218008, 241366, 243656, 269762, 280364, 295868, 397544, 482732, 517769, 539524, 560728, 591736, 844781, 944167, 965464, 1035538, 1079048, 1689562, 1888334, 2071076, 2292977, 3379124, 3776668, 4142152, 4585954, 6758248, 7553336, 9171908, 16050839, 18343816, 32101678, 64203356, 128406712]

約数ペア:

[(1, 128406712), (2, 64203356), (4, 32101678), (7, 18343816), (8, 16050839), (14, 9171908), (17, 7553336), (19, 6758248), (28, 4585954), (31, 4142152), (34, 3776668), (38, 3379124), (56, 2292977), (62, 2071076), (68, 1888334), (76, 1689562), (119, 1079048), (124, 1035538), (133, 965464), (136, 944167), (152, 844781), (217, 591736), (229, 560728), (238, 539524), (248, 517769), (266, 482732), (323, 397544), (434, 295868), (458, 280364), (476, 269762), (527, 243656), (532, 241366), (589, 218008), (646, 198772), (868, 147934), (916, 140182), (952, 134881), (1054, 121828), (1064, 120683), (1178, 109004), (1292, 99386), (1603, 80104), (1736, 73967), (1832, 70091), (2108, 60914), (2261, 56792), (2356, 54502), (2584, 49693), (3206, 40052), (3689, 34808), (3893, 32984), (4123, 31144), (4216, 30457), (4351, 29512), (4522, 28396), (4712, 27251), (6412, 20026), (7099, 18088), (7378, 17404), (7786, 16492), (8246, 15572), (8702, 14756), (9044, 14198), (10013, 12824)]