12886280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29287}}^1$

素因数の和:29309

約数の個数: 32

約数和(自身を含む): 31631040

約数和(自身を除く): 18744760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 29287, 58574, 117148, 146435, 234296, 292870, 322157, 585740, 644314, 1171480, 1288628, 1610785, 2577256, 3221570, 6443140, 12886280]

約数ペア:

[(1, 12886280), (2, 6443140), (4, 3221570), (5, 2577256), (8, 1610785), (10, 1288628), (11, 1171480), (20, 644314), (22, 585740), (40, 322157), (44, 292870), (55, 234296), (88, 146435), (110, 117148), (220, 58574), (440, 29287)]