405904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{1103}}^1$

素因数の和:1134

約数の個数: 20

約数和(自身を含む): 821376

約数和(自身を除く): 415472

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 1103, 2206, 4412, 8824, 17648, 25369, 50738, 101476, 202952, 405904]

約数ペア:

[(1, 405904), (2, 202952), (4, 101476), (8, 50738), (16, 25369), (23, 17648), (46, 8824), (92, 4412), (184, 2206), (368, 1103)]