80837799

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 133735680

約数和(自身を除く): 52897881

約数列:

[1, 3, 7, 19, 21, 49, 57, 103, 133, 147, 281, 309, 399, 721, 843, 931, 1957, 1967, 2163, 2793, 5047, 5339, 5871, 5901, 13699, 13769, 15141, 16017, 28943, 37373, 41097, 41307, 86829, 95893, 112119, 202601, 261611, 287679, 549917, 607803, 784833, 1418207, 1649751, 3849419, 4254621, 11548257, 26945933, 80837799]

約数ペア:

[(1, 80837799), (3, 26945933), (7, 11548257), (19, 4254621), (21, 3849419), (49, 1649751), (57, 1418207), (103, 784833), (133, 607803), (147, 549917), (281, 287679), (309, 261611), (399, 202601), (721, 112119), (843, 95893), (931, 86829), (1957, 41307), (1967, 41097), (2163, 37373), (2793, 28943), (5047, 16017), (5339, 15141), (5871, 13769), (5901, 13699)]