398673604

素因数分解:

$2^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{18661}}^1$

素因数の和:18788

約数の個数: 36

約数和(自身を含む): 819075180

約数和(自身を除く): 420401576

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 109, 196, 218, 436, 763, 1526, 3052, 5341, 10682, 18661, 21364, 37322, 74644, 130627, 261254, 522508, 914389, 1828778, 2034049, 3657556, 4068098, 8136196, 14238343, 28476686, 56953372, 99668401, 199336802, 398673604]

約数ペア:

[(1, 398673604), (2, 199336802), (4, 99668401), (7, 56953372), (14, 28476686), (28, 14238343), (49, 8136196), (98, 4068098), (109, 3657556), (196, 2034049), (218, 1828778), (436, 914389), (763, 522508), (1526, 261254), (3052, 130627), (5341, 74644), (10682, 37322), (18661, 21364)]