18091640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64613}}^1$

素因数の和:64631

約数の個数: 32

約数和(自身を含む): 46522080

約数和(自身を除く): 28430440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64613, 129226, 258452, 323065, 452291, 516904, 646130, 904582, 1292260, 1809164, 2261455, 2584520, 3618328, 4522910, 9045820, 18091640]

約数ペア:

[(1, 18091640), (2, 9045820), (4, 4522910), (5, 3618328), (7, 2584520), (8, 2261455), (10, 1809164), (14, 1292260), (20, 904582), (28, 646130), (35, 516904), (40, 452291), (56, 323065), (70, 258452), (140, 129226), (280, 64613)]