17890180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11617}}^1$

素因数の和:11644

約数の個数: 48

約数和(自身を含む): 46843776

約数和(自身を除く): 28953596

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11617, 23234, 46468, 58085, 81319, 116170, 127787, 162638, 232340, 255574, 325276, 406595, 511148, 638935, 813190, 894509, 1277870, 1626380, 1789018, 2555740, 3578036, 4472545, 8945090, 17890180]

約数ペア:

[(1, 17890180), (2, 8945090), (4, 4472545), (5, 3578036), (7, 2555740), (10, 1789018), (11, 1626380), (14, 1277870), (20, 894509), (22, 813190), (28, 638935), (35, 511148), (44, 406595), (55, 325276), (70, 255574), (77, 232340), (110, 162638), (140, 127787), (154, 116170), (220, 81319), (308, 58085), (385, 46468), (770, 23234), (1540, 11617)]