396464

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:428

約数の個数: 20

約数和(自身を含む): 781200

約数和(自身を除く): 384736

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 349, 568, 698, 1136, 1396, 2792, 5584, 24779, 49558, 99116, 198232, 396464]

約数ペア:

[(1, 396464), (2, 198232), (4, 99116), (8, 49558), (16, 24779), (71, 5584), (142, 2792), (284, 1396), (349, 1136), (568, 698)]