1400720

素因数分解:

$2^4\times 5^1\times {\mathrm{17509}}^1$

素因数の和:17522

約数の個数: 20

約数和(自身を含む): 3256860

約数和(自身を除く): 1856140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17509, 35018, 70036, 87545, 140072, 175090, 280144, 350180, 700360, 1400720]

約数ペア:

[(1, 1400720), (2, 700360), (4, 350180), (5, 280144), (8, 175090), (10, 140072), (16, 87545), (20, 70036), (40, 35018), (80, 17509)]