682220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 1790208

約数和(自身を除く): 1107988

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, 443, 770, 886, 1540, 1772, 2215, 3101, 4430, 4873, 6202, 8860, 9746, 12404, 15505, 19492, 24365, 31010, 34111, 48730, 62020, 68222, 97460, 136444, 170555, 341110, 682220]

約数ペア:

[(1, 682220), (2, 341110), (4, 170555), (5, 136444), (7, 97460), (10, 68222), (11, 62020), (14, 48730), (20, 34111), (22, 31010), (28, 24365), (35, 19492), (44, 15505), (55, 12404), (70, 9746), (77, 8860), (110, 6202), (140, 4873), (154, 4430), (220, 3101), (308, 2215), (385, 1772), (443, 1540), (770, 886)]