19418120

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1399}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 43848000

約数和(自身を除く): 24429880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1399, 1735, 2776, 2798, 3470, 5596, 6940, 6995, 11192, 13880, 13990, 27980, 55960, 485453, 970906, 1941812, 2427265, 3883624, 4854530, 9709060, 19418120]

約数ペア:

[(1, 19418120), (2, 9709060), (4, 4854530), (5, 3883624), (8, 2427265), (10, 1941812), (20, 970906), (40, 485453), (347, 55960), (694, 27980), (1388, 13990), (1399, 13880), (1735, 11192), (2776, 6995), (2798, 6940), (3470, 5596)]