1640245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:884

約数の個数: 16

約数和(自身を含む): 2177280

約数和(自身を除く): 537035

約数列:

[1, 5, 17, 23, 85, 115, 391, 839, 1955, 4195, 14263, 19297, 71315, 96485, 328049, 1640245]

約数ペア:

[(1, 1640245), (5, 328049), (17, 96485), (23, 71315), (85, 19297), (115, 14263), (391, 4195), (839, 1955)]