396428

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 752640

約数和(自身を除く): 356212

約数列:

[1, 2, 4, 23, 31, 46, 62, 92, 124, 139, 278, 556, 713, 1426, 2852, 3197, 4309, 6394, 8618, 12788, 17236, 99107, 198214, 396428]

約数ペア:

[(1, 396428), (2, 198214), (4, 99107), (23, 17236), (31, 12788), (46, 8618), (62, 6394), (92, 4309), (124, 3197), (139, 2852), (278, 1426), (556, 713)]