20218670

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28477}}^1$

素因数の和:28555

約数の個数: 16

約数和(自身を含む): 36907488

約数和(自身を除く): 16688818

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28477, 56954, 142385, 284770, 2021867, 4043734, 10109335, 20218670]

約数ペア:

[(1, 20218670), (2, 10109335), (5, 4043734), (10, 2021867), (71, 284770), (142, 142385), (355, 56954), (710, 28477)]