78828990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:473

約数の個数: 64

約数和(自身を含む): 193729536

約数和(自身を除く): 114900546

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 97, 103, 194, 206, 263, 291, 309, 485, 515, 526, 582, 618, 789, 970, 1030, 1315, 1455, 1545, 1578, 2630, 2910, 3090, 3945, 7890, 9991, 19982, 25511, 27089, 29973, 49955, 51022, 54178, 59946, 76533, 81267, 99910, 127555, 135445, 149865, 153066, 162534, 255110, 270890, 299730, 382665, 406335, 765330, 812670, 2627633, 5255266, 7882899, 13138165, 15765798, 26276330, 39414495, 78828990]

約数ペア:

[(1, 78828990), (2, 39414495), (3, 26276330), (5, 15765798), (6, 13138165), (10, 7882899), (15, 5255266), (30, 2627633), (97, 812670), (103, 765330), (194, 406335), (206, 382665), (263, 299730), (291, 270890), (309, 255110), (485, 162534), (515, 153066), (526, 149865), (582, 135445), (618, 127555), (789, 99910), (970, 81267), (1030, 76533), (1315, 59946), (1455, 54178), (1545, 51022), (1578, 49955), (2630, 29973), (2910, 27089), (3090, 25511), (3945, 19982), (7890, 9991)]