12720441200

素因数分解:

$2^4\times 5^2\times {\mathrm{31801103}}^1$

素因数の和:31801121

約数の個数: 30

約数和(自身を含む): 30560860944

約数和(自身を除く): 17840419744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31801103, 63602206, 127204412, 159005515, 254408824, 318011030, 508817648, 636022060, 795027575, 1272044120, 1590055150, 2544088240, 3180110300, 6360220600, 12720441200]

約数ペア:

[(1, 12720441200), (2, 6360220600), (4, 3180110300), (5, 2544088240), (8, 1590055150), (10, 1272044120), (16, 795027575), (20, 636022060), (25, 508817648), (40, 318011030), (50, 254408824), (80, 159005515), (100, 127204412), (200, 63602206), (400, 31801103)]