20012890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{105331}}^1$

素因数の和:105357

約数の個数: 16

約数和(自身を含む): 37919520

約数和(自身を除く): 17906630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 105331, 210662, 526655, 1053310, 2001289, 4002578, 10006445, 20012890]

約数ペア:

[(1, 20012890), (2, 10006445), (5, 4002578), (10, 2001289), (19, 1053310), (38, 526655), (95, 210662), (190, 105331)]