20198408830

素因数分解:

$2^1\times 5^1\times {\mathrm{25981}}^1\times {\mathrm{77743}}^1$

素因数の和:103731

約数の個数: 16

約数和(自身を含む): 36359002944

約数和(自身を除く): 16160594114

約数列:

[1, 2, 5, 10, 25981, 51962, 77743, 129905, 155486, 259810, 388715, 777430, 2019840883, 4039681766, 10099204415, 20198408830]

約数ペア:

[(1, 20198408830), (2, 10099204415), (5, 4039681766), (10, 2019840883), (25981, 777430), (51962, 388715), (77743, 259810), (129905, 155486)]