81979268

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127297}}^1$

素因数の和:127331

約数の個数: 24

約数和(自身を含む): 171088512

約数和(自身を除く): 89109244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 127297, 254594, 509188, 891079, 1782158, 2927831, 3564316, 5855662, 11711324, 20494817, 40989634, 81979268]

約数ペア:

[(1, 81979268), (2, 40989634), (4, 20494817), (7, 11711324), (14, 5855662), (23, 3564316), (28, 2927831), (46, 1782158), (92, 891079), (161, 509188), (322, 254594), (644, 127297)]