12743225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 17409600

約数和(自身を除く): 4666375

約数列:

[1, 5, 11, 25, 55, 149, 275, 311, 745, 1555, 1639, 3421, 3725, 7775, 8195, 17105, 40975, 46339, 85525, 231695, 509729, 1158475, 2548645, 12743225]

約数ペア:

[(1, 12743225), (5, 2548645), (11, 1158475), (25, 509729), (55, 231695), (149, 85525), (275, 46339), (311, 40975), (745, 17105), (1555, 8195), (1639, 7775), (3421, 3725)]