1278989865

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{2381}}^1$

素因数の和:2591

約数の個数: 64

約数和(自身を含む): 2387335680

約数和(自身を除く): 1108345815

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 173, 207, 345, 519, 621, 865, 1035, 1557, 2381, 2595, 3105, 3979, 4671, 7143, 7785, 11905, 11937, 19895, 21429, 23355, 35715, 35811, 54763, 59685, 64287, 107145, 107433, 164289, 179055, 273815, 321435, 411913, 492867, 537165, 821445, 1235739, 1478601, 2059565, 2464335, 3707217, 6178695, 7393005, 9473999, 11121651, 18536085, 28421997, 47369995, 55608255, 85265991, 142109985, 255797973, 426329955, 1278989865]

約数ペア:

[(1, 1278989865), (3, 426329955), (5, 255797973), (9, 142109985), (15, 85265991), (23, 55608255), (27, 47369995), (45, 28421997), (69, 18536085), (115, 11121651), (135, 9473999), (173, 7393005), (207, 6178695), (345, 3707217), (519, 2464335), (621, 2059565), (865, 1478601), (1035, 1235739), (1557, 821445), (2381, 537165), (2595, 492867), (3105, 411913), (3979, 321435), (4671, 273815), (7143, 179055), (7785, 164289), (11905, 107433), (11937, 107145), (19895, 64287), (21429, 59685), (23355, 54763), (35715, 35811)]