81437888

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^3\times {\mathrm{37}}^1$

素因数の和:107

約数の個数: 112

約数和(自身を含む): 201533760

約数和(自身を除く): 120095872

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 37, 56, 64, 68, 74, 112, 119, 136, 148, 224, 238, 259, 272, 289, 296, 448, 476, 518, 544, 578, 592, 629, 952, 1036, 1088, 1156, 1184, 1258, 1904, 2023, 2072, 2312, 2368, 2516, 3808, 4046, 4144, 4403, 4624, 4913, 5032, 7616, 8092, 8288, 8806, 9248, 9826, 10064, 10693, 16184, 16576, 17612, 18496, 19652, 20128, 21386, 32368, 34391, 35224, 39304, 40256, 42772, 64736, 68782, 70448, 74851, 78608, 85544, 129472, 137564, 140896, 149702, 157216, 171088, 181781, 275128, 281792, 299404, 314432, 342176, 363562, 550256, 598808, 684352, 727124, 1100512, 1197616, 1272467, 1454248, 2201024, 2395232, 2544934, 2908496, 4790464, 5089868, 5816992, 10179736, 11633984, 20359472, 40718944, 81437888]

約数ペア:

[(1, 81437888), (2, 40718944), (4, 20359472), (7, 11633984), (8, 10179736), (14, 5816992), (16, 5089868), (17, 4790464), (28, 2908496), (32, 2544934), (34, 2395232), (37, 2201024), (56, 1454248), (64, 1272467), (68, 1197616), (74, 1100512), (112, 727124), (119, 684352), (136, 598808), (148, 550256), (224, 363562), (238, 342176), (259, 314432), (272, 299404), (289, 281792), (296, 275128), (448, 181781), (476, 171088), (518, 157216), (544, 149702), (578, 140896), (592, 137564), (629, 129472), (952, 85544), (1036, 78608), (1088, 74851), (1156, 70448), (1184, 68782), (1258, 64736), (1904, 42772), (2023, 40256), (2072, 39304), (2312, 35224), (2368, 34391), (2516, 32368), (3808, 21386), (4046, 20128), (4144, 19652), (4403, 18496), (4624, 17612), (4913, 16576), (5032, 16184), (7616, 10693), (8092, 10064), (8288, 9826), (8806, 9248)]