243120040

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{7723}}^1$

素因数の和:8521

約数の個数: 32

約数和(自身を含む): 547786080

約数和(自身を除く): 304666040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 3148, 3935, 6296, 7723, 7870, 15446, 15740, 30892, 31480, 38615, 61784, 77230, 154460, 308920, 6078001, 12156002, 24312004, 30390005, 48624008, 60780010, 121560020, 243120040]

約数ペア:

[(1, 243120040), (2, 121560020), (4, 60780010), (5, 48624008), (8, 30390005), (10, 24312004), (20, 12156002), (40, 6078001), (787, 308920), (1574, 154460), (3148, 77230), (3935, 61784), (6296, 38615), (7723, 31480), (7870, 30892), (15446, 15740)]