81493048

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 203857920

約数和(自身を除く): 122364872

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 31, 46, 52, 56, 62, 91, 92, 104, 124, 157, 161, 182, 184, 217, 248, 299, 314, 322, 364, 403, 434, 598, 628, 644, 713, 728, 806, 868, 1099, 1196, 1256, 1288, 1426, 1612, 1736, 2041, 2093, 2198, 2392, 2821, 2852, 3224, 3611, 4082, 4186, 4396, 4867, 4991, 5642, 5704, 7222, 8164, 8372, 8792, 9269, 9734, 9982, 11284, 14287, 14444, 16328, 16744, 18538, 19468, 19964, 22568, 25277, 28574, 28888, 34069, 37076, 38936, 39928, 46943, 50554, 57148, 63271, 64883, 68138, 74152, 93886, 101108, 111941, 114296, 126542, 129766, 136276, 187772, 202216, 223882, 253084, 259532, 272552, 328601, 375544, 442897, 447764, 506168, 519064, 657202, 783587, 885794, 895528, 1314404, 1455233, 1567174, 1771588, 2628808, 2910466, 3134348, 3543176, 5820932, 6268696, 10186631, 11641864, 20373262, 40746524, 81493048]

約数ペア:

[(1, 81493048), (2, 40746524), (4, 20373262), (7, 11641864), (8, 10186631), (13, 6268696), (14, 5820932), (23, 3543176), (26, 3134348), (28, 2910466), (31, 2628808), (46, 1771588), (52, 1567174), (56, 1455233), (62, 1314404), (91, 895528), (92, 885794), (104, 783587), (124, 657202), (157, 519064), (161, 506168), (182, 447764), (184, 442897), (217, 375544), (248, 328601), (299, 272552), (314, 259532), (322, 253084), (364, 223882), (403, 202216), (434, 187772), (598, 136276), (628, 129766), (644, 126542), (713, 114296), (728, 111941), (806, 101108), (868, 93886), (1099, 74152), (1196, 68138), (1256, 64883), (1288, 63271), (1426, 57148), (1612, 50554), (1736, 46943), (2041, 39928), (2093, 38936), (2198, 37076), (2392, 34069), (2821, 28888), (2852, 28574), (3224, 25277), (3611, 22568), (4082, 19964), (4186, 19468), (4396, 18538), (4867, 16744), (4991, 16328), (5642, 14444), (5704, 14287), (7222, 11284), (8164, 9982), (8372, 9734), (8792, 9269)]