17980325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{433}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 24540096

約数和(自身を除く): 6559771

約数列:

[1, 5, 11, 25, 55, 151, 275, 433, 755, 1661, 2165, 3775, 4763, 8305, 10825, 23815, 41525, 65383, 119075, 326915, 719213, 1634575, 3596065, 17980325]

約数ペア:

[(1, 17980325), (5, 3596065), (11, 1634575), (25, 719213), (55, 326915), (151, 119075), (275, 65383), (433, 41525), (755, 23815), (1661, 10825), (2165, 8305), (3775, 4763)]