78896380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{36191}}^1$

素因数の和:36309

約数の個数: 24

約数和(自身を含む): 167207040

約数和(自身を除く): 88310660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 36191, 72382, 144764, 180955, 361910, 723820, 3944819, 7889638, 15779276, 19724095, 39448190, 78896380]

約数ペア:

[(1, 78896380), (2, 39448190), (4, 19724095), (5, 15779276), (10, 7889638), (20, 3944819), (109, 723820), (218, 361910), (436, 180955), (545, 144764), (1090, 72382), (2180, 36191)]