39521440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{71}}^2$

素因数の和:171

約数の個数: 108

約数和(自身を含む): 110164698

約数和(自身を除く): 70643258

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 160, 196, 224, 245, 280, 284, 355, 392, 490, 497, 560, 568, 710, 784, 980, 994, 1120, 1136, 1420, 1568, 1960, 1988, 2272, 2485, 2840, 3479, 3920, 3976, 4970, 5041, 5680, 6958, 7840, 7952, 9940, 10082, 11360, 13916, 15904, 17395, 19880, 20164, 25205, 27832, 34790, 35287, 39760, 40328, 50410, 55664, 69580, 70574, 79520, 80656, 100820, 111328, 139160, 141148, 161312, 176435, 201640, 247009, 278320, 282296, 352870, 403280, 494018, 556640, 564592, 705740, 806560, 988036, 1129184, 1235045, 1411480, 1976072, 2470090, 2822960, 3952144, 4940180, 5645920, 7904288, 9880360, 19760720, 39521440]

約数ペア:

[(1, 39521440), (2, 19760720), (4, 9880360), (5, 7904288), (7, 5645920), (8, 4940180), (10, 3952144), (14, 2822960), (16, 2470090), (20, 1976072), (28, 1411480), (32, 1235045), (35, 1129184), (40, 988036), (49, 806560), (56, 705740), (70, 564592), (71, 556640), (80, 494018), (98, 403280), (112, 352870), (140, 282296), (142, 278320), (160, 247009), (196, 201640), (224, 176435), (245, 161312), (280, 141148), (284, 139160), (355, 111328), (392, 100820), (490, 80656), (497, 79520), (560, 70574), (568, 69580), (710, 55664), (784, 50410), (980, 40328), (994, 39760), (1120, 35287), (1136, 34790), (1420, 27832), (1568, 25205), (1960, 20164), (1988, 19880), (2272, 17395), (2485, 15904), (2840, 13916), (3479, 11360), (3920, 10082), (3976, 9940), (4970, 7952), (5041, 7840), (5680, 6958)]