20121802570

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28340567}}^1$

素因数の和:28340645

約数の個数: 16

約数和(自身を含む): 36729376128

約数和(自身を除く): 16607573558

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28340567, 56681134, 141702835, 283405670, 2012180257, 4024360514, 10060901285, 20121802570]

約数ペア:

[(1, 20121802570), (2, 10060901285), (5, 4024360514), (10, 2012180257), (71, 283405670), (142, 141702835), (355, 56681134), (710, 28340567)]