81580616

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{1091}}^1$

素因数の和:1829

約数の個数: 32

約数和(自身を含む): 165110400

約数和(自身を除く): 83529784

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 719, 1091, 1438, 2182, 2876, 4364, 5752, 8728, 9347, 14183, 18694, 28366, 37388, 56732, 74776, 113464, 784429, 1568858, 3137716, 6275432, 10197577, 20395154, 40790308, 81580616]

約数ペア:

[(1, 81580616), (2, 40790308), (4, 20395154), (8, 10197577), (13, 6275432), (26, 3137716), (52, 1568858), (104, 784429), (719, 113464), (1091, 74776), (1438, 56732), (2182, 37388), (2876, 28366), (4364, 18694), (5752, 14183), (8728, 9347)]