81447328

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{18311}}^1$

素因数の和:18460

約数の個数: 24

約数和(自身を含む): 161511840

約数和(自身を除く): 80064512

約数列:

[1, 2, 4, 8, 16, 32, 139, 278, 556, 1112, 2224, 4448, 18311, 36622, 73244, 146488, 292976, 585952, 2545229, 5090458, 10180916, 20361832, 40723664, 81447328]

約数ペア:

[(1, 81447328), (2, 40723664), (4, 20361832), (8, 10180916), (16, 5090458), (32, 2545229), (139, 585952), (278, 292976), (556, 146488), (1112, 73244), (2224, 36622), (4448, 18311)]