725265

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 1280448

約数和(自身を除く): 555183

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 227, 355, 639, 681, 1065, 1135, 2043, 3195, 3405, 10215, 16117, 48351, 80585, 145053, 241755, 725265]

約数ペア:

[(1, 725265), (3, 241755), (5, 145053), (9, 80585), (15, 48351), (45, 16117), (71, 10215), (213, 3405), (227, 3195), (355, 2043), (639, 1135), (681, 1065)]