123601640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{28349}}^1$

素因数の和:28469

約数の個数: 32

約数和(自身を含む): 280665000

約数和(自身を除く): 157063360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 28349, 56698, 113396, 141745, 226792, 283490, 566980, 1133960, 3090041, 6180082, 12360164, 15450205, 24720328, 30900410, 61800820, 123601640]

約数ペア:

[(1, 123601640), (2, 61800820), (4, 30900410), (5, 24720328), (8, 15450205), (10, 12360164), (20, 6180082), (40, 3090041), (109, 1133960), (218, 566980), (436, 283490), (545, 226792), (872, 141745), (1090, 113396), (2180, 56698), (4360, 28349)]