81684772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{5051}}^1$

素因数の和:5379

約数の個数: 24

約数和(自身を含む): 154469952

約数和(自身を除く): 72785180

約数列:

[1, 2, 4, 13, 26, 52, 311, 622, 1244, 4043, 5051, 8086, 10102, 16172, 20204, 65663, 131326, 262652, 1570861, 3141722, 6283444, 20421193, 40842386, 81684772]

約数ペア:

[(1, 81684772), (2, 40842386), (4, 20421193), (13, 6283444), (26, 3141722), (52, 1570861), (311, 262652), (622, 131326), (1244, 65663), (4043, 20204), (5051, 16172), (8086, 10102)]