178142780

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{5641}}^1$

素因数の和:7229

約数の個数: 24

約数和(自身を含む): 374403120

約数和(自身を除く): 196260340

約数列:

[1, 2, 4, 5, 10, 20, 1579, 3158, 5641, 6316, 7895, 11282, 15790, 22564, 28205, 31580, 56410, 112820, 8907139, 17814278, 35628556, 44535695, 89071390, 178142780]

約数ペア:

[(1, 178142780), (2, 89071390), (4, 44535695), (5, 35628556), (10, 17814278), (20, 8907139), (1579, 112820), (3158, 56410), (5641, 31580), (6316, 28205), (7895, 22564), (11282, 15790)]