279865795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1571}}^1$

素因数の和:1707

約数の個数: 32

約数和(自身を含む): 380298240

約数和(自身を除く): 100432445

約数列:

[1, 5, 11, 41, 55, 79, 205, 395, 451, 869, 1571, 2255, 3239, 4345, 7855, 16195, 17281, 35629, 64411, 86405, 124109, 178145, 322055, 620545, 708521, 1365199, 3542605, 5088469, 6825995, 25442345, 55973159, 279865795]

約数ペア:

[(1, 279865795), (5, 55973159), (11, 25442345), (41, 6825995), (55, 5088469), (79, 3542605), (205, 1365199), (395, 708521), (451, 620545), (869, 322055), (1571, 178145), (2255, 124109), (3239, 86405), (4345, 64411), (7855, 35629), (16195, 17281)]