80691988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{7877}}^1$

素因数の和:8091

約数の個数: 24

約数和(自身を含む): 152864712

約数和(自身を除く): 72172724

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 2561, 5122, 7877, 10244, 15754, 31508, 102401, 204802, 409604, 1551769, 3103538, 6207076, 20172997, 40345994, 80691988]

約数ペア:

[(1, 80691988), (2, 40345994), (4, 20172997), (13, 6207076), (26, 3103538), (52, 1551769), (197, 409604), (394, 204802), (788, 102401), (2561, 31508), (5122, 15754), (7877, 10244)]