393920

素因数分解:

$2^6\times 5^1\times {\mathrm{1231}}^1$

素因数の和:1248

約数の個数: 28

約数和(自身を含む): 938784

約数和(自身を除く): 544864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1231, 2462, 4924, 6155, 9848, 12310, 19696, 24620, 39392, 49240, 78784, 98480, 196960, 393920]

約数ペア:

[(1, 393920), (2, 196960), (4, 98480), (5, 78784), (8, 49240), (10, 39392), (16, 24620), (20, 19696), (32, 12310), (40, 9848), (64, 6155), (80, 4924), (160, 2462), (320, 1231)]