285877879

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 350853120

約数和(自身を除く): 64975241

約数列:

[1, 7, 23, 71, 89, 161, 281, 497, 623, 1633, 1967, 2047, 6319, 6463, 11431, 14329, 19951, 25009, 44233, 45241, 139657, 145337, 175063, 458873, 575207, 1017359, 1775639, 3212111, 4026449, 12429473, 40839697, 285877879]

約数ペア:

[(1, 285877879), (7, 40839697), (23, 12429473), (71, 4026449), (89, 3212111), (161, 1775639), (281, 1017359), (497, 575207), (623, 458873), (1633, 175063), (1967, 145337), (2047, 139657), (6319, 45241), (6463, 44233), (11431, 25009), (14329, 19951)]