281398416

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:729

約数の個数: 160

約数和(自身を含む): 850445568

約数和(自身を除く): 569047152

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 17, 24, 26, 34, 39, 41, 48, 51, 52, 68, 78, 82, 102, 104, 123, 136, 156, 164, 204, 208, 221, 246, 272, 312, 328, 408, 442, 492, 533, 624, 647, 656, 663, 697, 816, 884, 984, 1066, 1294, 1326, 1394, 1599, 1768, 1941, 1968, 2091, 2132, 2588, 2652, 2788, 3198, 3536, 3882, 4182, 4264, 5176, 5304, 5576, 6396, 7764, 8364, 8411, 8528, 9061, 10352, 10608, 10999, 11152, 12792, 15528, 16728, 16822, 18122, 21998, 25233, 25584, 26527, 27183, 31056, 32997, 33456, 33644, 36244, 43996, 50466, 53054, 54366, 65994, 67288, 72488, 79581, 87992, 100932, 106108, 108732, 131988, 134576, 142987, 144976, 159162, 175984, 201864, 212216, 217464, 263976, 285974, 318324, 344851, 403728, 424432, 428961, 434928, 450959, 527952, 571948, 636648, 689702, 857922, 901918, 1034553, 1143896, 1273296, 1352877, 1379404, 1715844, 1803836, 2069106, 2287792, 2705754, 2758808, 3431688, 3607672, 4138212, 5411508, 5517616, 5862467, 6863376, 7215344, 8276424, 10823016, 11724934, 16552848, 17587401, 21646032, 23449868, 35174802, 46899736, 70349604, 93799472, 140699208, 281398416]

約数ペア:

[(1, 281398416), (2, 140699208), (3, 93799472), (4, 70349604), (6, 46899736), (8, 35174802), (12, 23449868), (13, 21646032), (16, 17587401), (17, 16552848), (24, 11724934), (26, 10823016), (34, 8276424), (39, 7215344), (41, 6863376), (48, 5862467), (51, 5517616), (52, 5411508), (68, 4138212), (78, 3607672), (82, 3431688), (102, 2758808), (104, 2705754), (123, 2287792), (136, 2069106), (156, 1803836), (164, 1715844), (204, 1379404), (208, 1352877), (221, 1273296), (246, 1143896), (272, 1034553), (312, 901918), (328, 857922), (408, 689702), (442, 636648), (492, 571948), (533, 527952), (624, 450959), (647, 434928), (656, 428961), (663, 424432), (697, 403728), (816, 344851), (884, 318324), (984, 285974), (1066, 263976), (1294, 217464), (1326, 212216), (1394, 201864), (1599, 175984), (1768, 159162), (1941, 144976), (1968, 142987), (2091, 134576), (2132, 131988), (2588, 108732), (2652, 106108), (2788, 100932), (3198, 87992), (3536, 79581), (3882, 72488), (4182, 67288), (4264, 65994), (5176, 54366), (5304, 53054), (5576, 50466), (6396, 43996), (7764, 36244), (8364, 33644), (8411, 33456), (8528, 32997), (9061, 31056), (10352, 27183), (10608, 26527), (10999, 25584), (11152, 25233), (12792, 21998), (15528, 18122), (16728, 16822)]