25687180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14431}}^1$

素因数の和:14529

約数の個数: 24

約数和(自身を含む): 54552960

約数和(自身を除く): 28865780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 14431, 28862, 57724, 72155, 144310, 288620, 1284359, 2568718, 5137436, 6421795, 12843590, 25687180]

約数ペア:

[(1, 25687180), (2, 12843590), (4, 6421795), (5, 5137436), (10, 2568718), (20, 1284359), (89, 288620), (178, 144310), (356, 72155), (445, 57724), (890, 28862), (1780, 14431)]