8220804781

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{661}}^1\times {\mathrm{1549}}^1$

素因数の和:2285

約数の個数: 32

約数和(自身を含む): 9981900800

約数和(自身を除く): 1761096019

約数列:

[1, 7, 31, 37, 217, 259, 661, 1147, 1549, 4627, 8029, 10843, 20491, 24457, 48019, 57313, 143437, 171199, 336133, 401191, 758167, 1023889, 1776703, 5307169, 7167223, 12436921, 31740559, 37883893, 222183913, 265187251, 1174400683, 8220804781]

約数ペア:

[(1, 8220804781), (7, 1174400683), (31, 265187251), (37, 222183913), (217, 37883893), (259, 31740559), (661, 12436921), (1147, 7167223), (1549, 5307169), (4627, 1776703), (8029, 1023889), (10843, 758167), (20491, 401191), (24457, 336133), (48019, 171199), (57313, 143437)]