81539224

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{2521}}^1$

素因数の和:2851

約数の個数: 32

約数和(自身を含む): 165241440

約数和(自身を除く): 83702216

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 311, 622, 1244, 2488, 2521, 4043, 5042, 8086, 10084, 16172, 20168, 32344, 32773, 65546, 131092, 262184, 784031, 1568062, 3136124, 6272248, 10192403, 20384806, 40769612, 81539224]

約数ペア:

[(1, 81539224), (2, 40769612), (4, 20384806), (8, 10192403), (13, 6272248), (26, 3136124), (52, 1568062), (104, 784031), (311, 262184), (622, 131092), (1244, 65546), (2488, 32773), (2521, 32344), (4043, 20168), (5042, 16172), (8086, 10084)]