391897078

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1\times {\mathrm{449}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 628992000

約数和(自身を除く): 237094922

約数列:

[1, 2, 19, 38, 103, 206, 223, 446, 449, 898, 1957, 3914, 4237, 8474, 8531, 17062, 22969, 45938, 46247, 92494, 100127, 200254, 436411, 872822, 878693, 1757386, 1902413, 3804826, 10313081, 20626162, 195948539, 391897078]

約数ペア:

[(1, 391897078), (2, 195948539), (19, 20626162), (38, 10313081), (103, 3804826), (206, 1902413), (223, 1757386), (446, 878693), (449, 872822), (898, 436411), (1957, 200254), (3914, 100127), (4237, 92494), (8474, 46247), (8531, 45938), (17062, 22969)]