344440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 792000

約数和(自身を除く): 447560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 109, 158, 218, 316, 395, 436, 545, 632, 790, 872, 1090, 1580, 2180, 3160, 4360, 8611, 17222, 34444, 43055, 68888, 86110, 172220, 344440]

約数ペア:

[(1, 344440), (2, 172220), (4, 86110), (5, 68888), (8, 43055), (10, 34444), (20, 17222), (40, 8611), (79, 4360), (109, 3160), (158, 2180), (218, 1580), (316, 1090), (395, 872), (436, 790), (545, 632)]