399832

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 32

約数和(自身を含む): 816480

約数和(自身を除く): 416648

約数列:

[1, 2, 4, 8, 23, 41, 46, 53, 82, 92, 106, 164, 184, 212, 328, 424, 943, 1219, 1886, 2173, 2438, 3772, 4346, 4876, 7544, 8692, 9752, 17384, 49979, 99958, 199916, 399832]

約数ペア:

[(1, 399832), (2, 199916), (4, 99958), (8, 49979), (23, 17384), (41, 9752), (46, 8692), (53, 7544), (82, 4876), (92, 4346), (106, 3772), (164, 2438), (184, 2173), (212, 1886), (328, 1219), (424, 943)]