397975656

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1275563}}^1$

素因数の和:1275585

約数の個数: 32

約数和(自身を含む): 1071473760

約数和(自身を除く): 673498104

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 1275563, 2551126, 3826689, 5102252, 7653378, 10204504, 15306756, 16582319, 30613512, 33164638, 49746957, 66329276, 99493914, 132658552, 198987828, 397975656]

約数ペア:

[(1, 397975656), (2, 198987828), (3, 132658552), (4, 99493914), (6, 66329276), (8, 49746957), (12, 33164638), (13, 30613512), (24, 16582319), (26, 15306756), (39, 10204504), (52, 7653378), (78, 5102252), (104, 3826689), (156, 2551126), (312, 1275563)]