817280

素因数分解:

$2^7\times 5^1\times {\mathrm{1277}}^1$

素因数の和:1296

約数の個数: 32

約数和(自身を含む): 1955340

約数和(自身を除く): 1138060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1277, 2554, 5108, 6385, 10216, 12770, 20432, 25540, 40864, 51080, 81728, 102160, 163456, 204320, 408640, 817280]

約数ペア:

[(1, 817280), (2, 408640), (4, 204320), (5, 163456), (8, 102160), (10, 81728), (16, 51080), (20, 40864), (32, 25540), (40, 20432), (64, 12770), (80, 10216), (128, 6385), (160, 5108), (320, 2554), (640, 1277)]