31667020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20563}}^1$

素因数の和:20590

約数の個数: 48

約数和(自身を含む): 82914048

約数和(自身を除く): 51247028

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, 20563, 41126, 82252, 102815, 143941, 205630, 226193, 287882, 411260, 452386, 575764, 719705, 904772, 1130965, 1439410, 1583351, 2261930, 2878820, 3166702, 4523860, 6333404, 7916755, 15833510, 31667020]

約数ペア:

[(1, 31667020), (2, 15833510), (4, 7916755), (5, 6333404), (7, 4523860), (10, 3166702), (11, 2878820), (14, 2261930), (20, 1583351), (22, 1439410), (28, 1130965), (35, 904772), (44, 719705), (55, 575764), (70, 452386), (77, 411260), (110, 287882), (140, 226193), (154, 205630), (220, 143941), (308, 102815), (385, 82252), (770, 41126), (1540, 20563)]