12449720

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{569}}^1$

素因数の和:1127

約数の個数: 32

約数和(自身を含む): 28112400

約数和(自身を除く): 15662680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 569, 1094, 1138, 2188, 2276, 2735, 2845, 4376, 4552, 5470, 5690, 10940, 11380, 21880, 22760, 311243, 622486, 1244972, 1556215, 2489944, 3112430, 6224860, 12449720]

約数ペア:

[(1, 12449720), (2, 6224860), (4, 3112430), (5, 2489944), (8, 1556215), (10, 1244972), (20, 622486), (40, 311243), (547, 22760), (569, 21880), (1094, 11380), (1138, 10940), (2188, 5690), (2276, 5470), (2735, 4552), (2845, 4376)]