20900300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{7207}}^1$

素因数の和:7250

約数の個数: 36

約数和(自身を含む): 46924080

約数和(自身を除く): 26023780

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 7207, 14414, 28828, 36035, 72070, 144140, 180175, 209003, 360350, 418006, 720700, 836012, 1045015, 2090030, 4180060, 5225075, 10450150, 20900300]

約数ペア:

[(1, 20900300), (2, 10450150), (4, 5225075), (5, 4180060), (10, 2090030), (20, 1045015), (25, 836012), (29, 720700), (50, 418006), (58, 360350), (100, 209003), (116, 180175), (145, 144140), (290, 72070), (580, 36035), (725, 28828), (1450, 14414), (2900, 7207)]