20890330

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29423}}^1$

素因数の和:29501

約数の個数: 16

約数和(自身を含む): 38133504

約数和(自身を除く): 17243174

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29423, 58846, 147115, 294230, 2089033, 4178066, 10445165, 20890330]

約数ペア:

[(1, 20890330), (2, 10445165), (5, 4178066), (10, 2089033), (71, 294230), (142, 147115), (355, 58846), (710, 29423)]