12486680

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{641}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 28196640

約数和(自身を除く): 15709960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 641, 974, 1282, 1948, 2435, 2564, 3205, 3896, 4870, 5128, 6410, 9740, 12820, 19480, 25640, 312167, 624334, 1248668, 1560835, 2497336, 3121670, 6243340, 12486680]

約数ペア:

[(1, 12486680), (2, 6243340), (4, 3121670), (5, 2497336), (8, 1560835), (10, 1248668), (20, 624334), (40, 312167), (487, 25640), (641, 19480), (974, 12820), (1282, 9740), (1948, 6410), (2435, 5128), (2564, 4870), (3205, 3896)]