826240

素因数分解:

$2^7\times 5^1\times {\mathrm{1291}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 1976760

約数和(自身を除く): 1150520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1291, 2582, 5164, 6455, 10328, 12910, 20656, 25820, 41312, 51640, 82624, 103280, 165248, 206560, 413120, 826240]

約数ペア:

[(1, 826240), (2, 413120), (4, 206560), (5, 165248), (8, 103280), (10, 82624), (16, 51640), (20, 41312), (32, 25820), (40, 20656), (64, 12910), (80, 10328), (128, 6455), (160, 5164), (320, 2582), (640, 1291)]