11905840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3461}}^1$

素因数の和:3517

約数の個数: 40

約数和(自身を含む): 28333008

約数和(自身を除く): 16427168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3461, 6922, 13844, 17305, 27688, 34610, 55376, 69220, 138440, 148823, 276880, 297646, 595292, 744115, 1190584, 1488230, 2381168, 2976460, 5952920, 11905840]

約数ペア:

[(1, 11905840), (2, 5952920), (4, 2976460), (5, 2381168), (8, 1488230), (10, 1190584), (16, 744115), (20, 595292), (40, 297646), (43, 276880), (80, 148823), (86, 138440), (172, 69220), (215, 55376), (344, 34610), (430, 27688), (688, 17305), (860, 13844), (1720, 6922), (3440, 3461)]