28571165

素因数分解:

$5^1\times 7^2\times {\mathrm{277}}^1\times {\mathrm{421}}^1$

素因数の和:717

約数の個数: 24

約数和(自身を含む): 40122072

約数和(自身を除く): 11550907

約数列:

[1, 5, 7, 35, 49, 245, 277, 421, 1385, 1939, 2105, 2947, 9695, 13573, 14735, 20629, 67865, 103145, 116617, 583085, 816319, 4081595, 5714233, 28571165]

約数ペア:

[(1, 28571165), (5, 5714233), (7, 4081595), (35, 816319), (49, 583085), (245, 116617), (277, 103145), (421, 67865), (1385, 20629), (1939, 14735), (2105, 13573), (2947, 9695)]