84884080

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2161}}^1$

素因数の和:2665

約数の個数: 40

約数和(自身を含む): 197848944

約数和(自身を除く): 112964864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2161, 2455, 3928, 4322, 4910, 7856, 8644, 9820, 10805, 17288, 19640, 21610, 34576, 39280, 43220, 86440, 172880, 1061051, 2122102, 4244204, 5305255, 8488408, 10610510, 16976816, 21221020, 42442040, 84884080]

約数ペア:

[(1, 84884080), (2, 42442040), (4, 21221020), (5, 16976816), (8, 10610510), (10, 8488408), (16, 5305255), (20, 4244204), (40, 2122102), (80, 1061051), (491, 172880), (982, 86440), (1964, 43220), (2161, 39280), (2455, 34576), (3928, 21610), (4322, 19640), (4910, 17288), (7856, 10805), (8644, 9820)]