81264175

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 111992832

約数和(自身を除く): 30728657

約数列:

[1, 5, 23, 25, 31, 47, 97, 115, 155, 235, 485, 575, 713, 775, 1081, 1175, 1457, 2231, 2425, 3007, 3565, 4559, 5405, 7285, 11155, 15035, 17825, 22795, 27025, 33511, 36425, 55775, 69161, 75175, 104857, 113975, 141329, 167555, 345805, 524285, 706645, 837775, 1729025, 2621425, 3250567, 3533225, 16252835, 81264175]

約数ペア:

[(1, 81264175), (5, 16252835), (23, 3533225), (25, 3250567), (31, 2621425), (47, 1729025), (97, 837775), (115, 706645), (155, 524285), (235, 345805), (485, 167555), (575, 141329), (713, 113975), (775, 104857), (1081, 75175), (1175, 69161), (1457, 55775), (2231, 36425), (2425, 33511), (3007, 27025), (3565, 22795), (4559, 17825), (5405, 15035), (7285, 11155)]