163931380

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{18671}}^1$

素因数の和:19119

約数の個数: 24

約数和(自身を含む): 345058560

約数和(自身を除く): 181127180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 18671, 37342, 74684, 93355, 186710, 373420, 8196569, 16393138, 32786276, 40982845, 81965690, 163931380]

約数ペア:

[(1, 163931380), (2, 81965690), (4, 40982845), (5, 32786276), (10, 16393138), (20, 8196569), (439, 373420), (878, 186710), (1756, 93355), (2195, 74684), (4390, 37342), (8780, 18671)]