78428144

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{12347}}^1$

素因数の和:12752

約数の個数: 20

約数和(自身を含む): 152349624

約数和(自身を除く): 73921480

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 6352, 12347, 24694, 49388, 98776, 197552, 4901759, 9803518, 19607036, 39214072, 78428144]

約数ペア:

[(1, 78428144), (2, 39214072), (4, 19607036), (8, 9803518), (16, 4901759), (397, 197552), (794, 98776), (1588, 49388), (3176, 24694), (6352, 12347)]