520044400

素因数分解:

$2^4\times 5^2\times {\mathrm{1300111}}^1$

素因数の和:1300129

約数の個数: 30

約数和(自身を含む): 1249407632

約数和(自身を除く): 729363232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1300111, 2600222, 5200444, 6500555, 10400888, 13001110, 20801776, 26002220, 32502775, 52004440, 65005550, 104008880, 130011100, 260022200, 520044400]

約数ペア:

[(1, 520044400), (2, 260022200), (4, 130011100), (5, 104008880), (8, 65005550), (10, 52004440), (16, 32502775), (20, 26002220), (25, 20801776), (40, 13001110), (50, 10400888), (80, 6500555), (100, 5200444), (200, 2600222), (400, 1300111)]