6401440

素因数分解:

$2^5\times 5^1\times {\mathrm{40009}}^1$

素因数の和:40024

約数の個数: 24

約数和(自身を含む): 15123780

約数和(自身を除く): 8722340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 40009, 80018, 160036, 200045, 320072, 400090, 640144, 800180, 1280288, 1600360, 3200720, 6401440]

約数ペア:

[(1, 6401440), (2, 3200720), (4, 1600360), (5, 1280288), (8, 800180), (10, 640144), (16, 400090), (20, 320072), (32, 200045), (40, 160036), (80, 80018), (160, 40009)]