65487280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19037}}^1$

素因数の和:19093

約数の個数: 40

約数和(自身を含む): 155806992

約数和(自身を除く): 90319712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19037, 38074, 76148, 95185, 152296, 190370, 304592, 380740, 761480, 818591, 1522960, 1637182, 3274364, 4092955, 6548728, 8185910, 13097456, 16371820, 32743640, 65487280]

約数ペア:

[(1, 65487280), (2, 32743640), (4, 16371820), (5, 13097456), (8, 8185910), (10, 6548728), (16, 4092955), (20, 3274364), (40, 1637182), (43, 1522960), (80, 818591), (86, 761480), (172, 380740), (215, 304592), (344, 190370), (430, 152296), (688, 95185), (860, 76148), (1720, 38074), (3440, 19037)]