20644190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42131}}^1$

素因数の和:42152

約数の個数: 24

約数和(自身を含む): 43227432

約数和(自身を除く): 22583242

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42131, 84262, 210655, 294917, 421310, 589834, 1474585, 2064419, 2949170, 4128838, 10322095, 20644190]

約数ペア:

[(1, 20644190), (2, 10322095), (5, 4128838), (7, 2949170), (10, 2064419), (14, 1474585), (35, 589834), (49, 421310), (70, 294917), (98, 210655), (245, 84262), (490, 42131)]