8663680

素因数分解:

$2^7\times 5^1\times {\mathrm{13537}}^1$

素因数の和:13556

約数の個数: 32

約数和(自身を含む): 20713140

約数和(自身を除く): 12049460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 13537, 27074, 54148, 67685, 108296, 135370, 216592, 270740, 433184, 541480, 866368, 1082960, 1732736, 2165920, 4331840, 8663680]

約数ペア:

[(1, 8663680), (2, 4331840), (4, 2165920), (5, 1732736), (8, 1082960), (10, 866368), (16, 541480), (20, 433184), (32, 270740), (40, 216592), (64, 135370), (80, 108296), (128, 67685), (160, 54148), (320, 27074), (640, 13537)]