12287720

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1109}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 27772200

約数和(自身を除く): 15484480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1109, 1385, 2216, 2218, 2770, 4436, 5540, 5545, 8872, 11080, 11090, 22180, 44360, 307193, 614386, 1228772, 1535965, 2457544, 3071930, 6143860, 12287720]

約数ペア:

[(1, 12287720), (2, 6143860), (4, 3071930), (5, 2457544), (8, 1535965), (10, 1228772), (20, 614386), (40, 307193), (277, 44360), (554, 22180), (1108, 11090), (1109, 11080), (1385, 8872), (2216, 5545), (2218, 5540), (2770, 4436)]