20129210

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28351}}^1$

素因数の和:28429

約数の個数: 16

約数和(自身を含む): 36744192

約数和(自身を除く): 16614982

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28351, 56702, 141755, 283510, 2012921, 4025842, 10064605, 20129210]

約数ペア:

[(1, 20129210), (2, 10064605), (5, 4025842), (10, 2012921), (71, 283510), (142, 141755), (355, 56702), (710, 28351)]