81218945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{1399}}^1$

素因数の和:2104

約数の個数: 16

約数和(自身を含む): 103420800

約数和(自身を除く): 22201855

約数列:

[1, 5, 17, 85, 683, 1399, 3415, 6995, 11611, 23783, 58055, 118915, 955517, 4777585, 16243789, 81218945]

約数ペア:

[(1, 81218945), (5, 16243789), (17, 4777585), (85, 955517), (683, 118915), (1399, 58055), (3415, 23783), (6995, 11611)]