25580120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5867}}^1$

素因数の和:5987

約数の個数: 32

約数和(自身を含む): 58093200

約数和(自身を除く): 32513080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 5867, 11734, 23468, 29335, 46936, 58670, 117340, 234680, 639503, 1279006, 2558012, 3197515, 5116024, 6395030, 12790060, 25580120]

約数ペア:

[(1, 25580120), (2, 12790060), (4, 6395030), (5, 5116024), (8, 3197515), (10, 2558012), (20, 1279006), (40, 639503), (109, 234680), (218, 117340), (436, 58670), (545, 46936), (872, 29335), (1090, 23468), (2180, 11734), (4360, 5867)]