257180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 677376

約数和(自身を除く): 420196

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 167, 220, 308, 334, 385, 668, 770, 835, 1169, 1540, 1670, 1837, 2338, 3340, 3674, 4676, 5845, 7348, 9185, 11690, 12859, 18370, 23380, 25718, 36740, 51436, 64295, 128590, 257180]

約数ペア:

[(1, 257180), (2, 128590), (4, 64295), (5, 51436), (7, 36740), (10, 25718), (11, 23380), (14, 18370), (20, 12859), (22, 11690), (28, 9185), (35, 7348), (44, 5845), (55, 4676), (70, 3674), (77, 3340), (110, 2338), (140, 1837), (154, 1670), (167, 1540), (220, 1169), (308, 835), (334, 770), (385, 668)]