64011440

素因数分解:

$2^4\times 5^1\times {\mathrm{800143}}^1$

素因数の和:800156

約数の個数: 20

約数和(自身を含む): 148826784

約数和(自身を除く): 84815344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800143, 1600286, 3200572, 4000715, 6401144, 8001430, 12802288, 16002860, 32005720, 64011440]

約数ペア:

[(1, 64011440), (2, 32005720), (4, 16002860), (5, 12802288), (8, 8001430), (10, 6401144), (16, 4000715), (20, 3200572), (40, 1600286), (80, 800143)]