20245045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 7126475

約数列:

[1, 5, 17, 29, 43, 85, 145, 191, 215, 493, 731, 955, 1247, 2465, 3247, 3655, 5539, 6235, 8213, 16235, 21199, 27695, 41065, 94163, 105995, 139621, 238177, 470815, 698105, 1190885, 4049009, 20245045]

約数ペア:

[(1, 20245045), (5, 4049009), (17, 1190885), (29, 698105), (43, 470815), (85, 238177), (145, 139621), (191, 105995), (215, 94163), (493, 41065), (731, 27695), (955, 21199), (1247, 16235), (2465, 8213), (3247, 6235), (3655, 5539)]