279820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 622944

約数和(自身を除く): 343124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 823, 1646, 3292, 4115, 8230, 13991, 16460, 27982, 55964, 69955, 139910, 279820]

約数ペア:

[(1, 279820), (2, 139910), (4, 69955), (5, 55964), (10, 27982), (17, 16460), (20, 13991), (34, 8230), (68, 4115), (85, 3292), (170, 1646), (340, 823)]