131750260

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{74017}}^1$

素因数の和:74115

約数の個数: 24

約数和(自身を含む): 279788040

約数和(自身を除く): 148037780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 74017, 148034, 296068, 370085, 740170, 1480340, 6587513, 13175026, 26350052, 32937565, 65875130, 131750260]

約数ペア:

[(1, 131750260), (2, 65875130), (4, 32937565), (5, 26350052), (10, 13175026), (20, 6587513), (89, 1480340), (178, 740170), (356, 370085), (445, 296068), (890, 148034), (1780, 74017)]