128281728

素因数分解:

$2^7\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:534

約数の個数: 128

約数和(自身を含む): 369990720

約数和(自身を除く): 241708992

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 43, 48, 51, 64, 68, 86, 96, 102, 128, 129, 136, 172, 192, 204, 258, 272, 344, 384, 408, 457, 516, 544, 688, 731, 816, 914, 1032, 1088, 1371, 1376, 1462, 1632, 1828, 2064, 2176, 2193, 2742, 2752, 2924, 3264, 3656, 4128, 4386, 5484, 5504, 5848, 6528, 7312, 7769, 8256, 8772, 10968, 11696, 14624, 15538, 16512, 17544, 19651, 21936, 23307, 23392, 29248, 31076, 35088, 39302, 43872, 46614, 46784, 58496, 58953, 62152, 70176, 78604, 87744, 93228, 93568, 117906, 124304, 140352, 157208, 175488, 186456, 235812, 248608, 280704, 314416, 334067, 372912, 471624, 497216, 628832, 668134, 745824, 943248, 994432, 1002201, 1257664, 1336268, 1491648, 1886496, 2004402, 2515328, 2672536, 2983296, 3772992, 4008804, 5345072, 7545984, 8017608, 10690144, 16035216, 21380288, 32070432, 42760576, 64140864, 128281728]

約数ペア:

[(1, 128281728), (2, 64140864), (3, 42760576), (4, 32070432), (6, 21380288), (8, 16035216), (12, 10690144), (16, 8017608), (17, 7545984), (24, 5345072), (32, 4008804), (34, 3772992), (43, 2983296), (48, 2672536), (51, 2515328), (64, 2004402), (68, 1886496), (86, 1491648), (96, 1336268), (102, 1257664), (128, 1002201), (129, 994432), (136, 943248), (172, 745824), (192, 668134), (204, 628832), (258, 497216), (272, 471624), (344, 372912), (384, 334067), (408, 314416), (457, 280704), (516, 248608), (544, 235812), (688, 186456), (731, 175488), (816, 157208), (914, 140352), (1032, 124304), (1088, 117906), (1371, 93568), (1376, 93228), (1462, 87744), (1632, 78604), (1828, 70176), (2064, 62152), (2176, 58953), (2193, 58496), (2742, 46784), (2752, 46614), (2924, 43872), (3264, 39302), (3656, 35088), (4128, 31076), (4386, 29248), (5484, 23392), (5504, 23307), (5848, 21936), (6528, 19651), (7312, 17544), (7769, 16512), (8256, 15538), (8772, 14624), (10968, 11696)]