78937989

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{347}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 120046080

約数和(自身を除く): 41108091

約数列:

[1, 3, 13, 19, 39, 57, 247, 307, 347, 741, 921, 1041, 3991, 4511, 5833, 6593, 11973, 13533, 17499, 19779, 75829, 85709, 106529, 227487, 257127, 319587, 1384877, 2024051, 4154631, 6072153, 26312663, 78937989]

約数ペア:

[(1, 78937989), (3, 26312663), (13, 6072153), (19, 4154631), (39, 2024051), (57, 1384877), (247, 319587), (307, 257127), (347, 227487), (741, 106529), (921, 85709), (1041, 75829), (3991, 19779), (4511, 17499), (5833, 13533), (6593, 11973)]