20129510020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23406407}}^1$

素因数の和:23406459

約数の個数: 24

約数和(自身を含む): 43255041984

約数和(自身を除く): 23125531964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23406407, 46812814, 93625628, 117032035, 234064070, 468128140, 1006475501, 2012951002, 4025902004, 5032377505, 10064755010, 20129510020]

約数ペア:

[(1, 20129510020), (2, 10064755010), (4, 5032377505), (5, 4025902004), (10, 2012951002), (20, 1006475501), (43, 468128140), (86, 234064070), (172, 117032035), (215, 93625628), (430, 46812814), (860, 23406407)]