404416

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:172

約数の個数: 28

約数和(自身を含む): 822960

約数和(自身を除く): 418544

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 89, 142, 178, 284, 356, 568, 712, 1136, 1424, 2272, 2848, 4544, 5696, 6319, 12638, 25276, 50552, 101104, 202208, 404416]

約数ペア:

[(1, 404416), (2, 202208), (4, 101104), (8, 50552), (16, 25276), (32, 12638), (64, 6319), (71, 5696), (89, 4544), (142, 2848), (178, 2272), (284, 1424), (356, 1136), (568, 712)]