131469920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:352

約数の個数: 96

約数和(自身を含む): 322727328

約数和(自身を除く): 191257408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 97, 160, 172, 194, 197, 215, 344, 388, 394, 430, 485, 688, 776, 788, 860, 970, 985, 1376, 1552, 1576, 1720, 1940, 1970, 3104, 3152, 3440, 3880, 3940, 4171, 6304, 6880, 7760, 7880, 8342, 8471, 15520, 15760, 16684, 16942, 19109, 20855, 31520, 33368, 33884, 38218, 41710, 42355, 66736, 67768, 76436, 83420, 84710, 95545, 133472, 135536, 152872, 166840, 169420, 191090, 271072, 305744, 333680, 338840, 382180, 611488, 667360, 677680, 764360, 821687, 1355360, 1528720, 1643374, 3057440, 3286748, 4108435, 6573496, 8216870, 13146992, 16433740, 26293984, 32867480, 65734960, 131469920]

約数ペア:

[(1, 131469920), (2, 65734960), (4, 32867480), (5, 26293984), (8, 16433740), (10, 13146992), (16, 8216870), (20, 6573496), (32, 4108435), (40, 3286748), (43, 3057440), (80, 1643374), (86, 1528720), (97, 1355360), (160, 821687), (172, 764360), (194, 677680), (197, 667360), (215, 611488), (344, 382180), (388, 338840), (394, 333680), (430, 305744), (485, 271072), (688, 191090), (776, 169420), (788, 166840), (860, 152872), (970, 135536), (985, 133472), (1376, 95545), (1552, 84710), (1576, 83420), (1720, 76436), (1940, 67768), (1970, 66736), (3104, 42355), (3152, 41710), (3440, 38218), (3880, 33884), (3940, 33368), (4171, 31520), (6304, 20855), (6880, 19109), (7760, 16942), (7880, 16684), (8342, 15760), (8471, 15520)]