124640720

素因数分解:

$2^4\times 5^1\times {\mathrm{1558009}}^1$

素因数の和:1558022

約数の個数: 20

約数和(自身を含む): 289789860

約数和(自身を除く): 165149140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1558009, 3116018, 6232036, 7790045, 12464072, 15580090, 24928144, 31160180, 62320360, 124640720]

約数ペア:

[(1, 124640720), (2, 62320360), (4, 31160180), (5, 24928144), (8, 15580090), (10, 12464072), (16, 7790045), (20, 6232036), (40, 3116018), (80, 1558009)]