78758667

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 131040000

約数和(自身を除く): 52281333

約数列:

[1, 3, 9, 13, 19, 39, 57, 71, 117, 171, 213, 247, 499, 639, 741, 923, 1349, 1497, 2223, 2769, 4047, 4491, 6487, 8307, 9481, 12141, 17537, 19461, 28443, 35429, 52611, 58383, 85329, 106287, 123253, 157833, 318861, 369759, 460577, 673151, 1109277, 1381731, 2019453, 4145193, 6058359, 8750963, 26252889, 78758667]

約数ペア:

[(1, 78758667), (3, 26252889), (9, 8750963), (13, 6058359), (19, 4145193), (39, 2019453), (57, 1381731), (71, 1109277), (117, 673151), (171, 460577), (213, 369759), (247, 318861), (499, 157833), (639, 123253), (741, 106287), (923, 85329), (1349, 58383), (1497, 52611), (2223, 35429), (2769, 28443), (4047, 19461), (4491, 17537), (6487, 12141), (8307, 9481)]