87839425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^2$

素因数の和:210

約数の個数: 36

約数和(自身を含む): 119828268

約数和(自身を除く): 31988843

約数列:

[1, 5, 17, 25, 41, 71, 85, 205, 355, 425, 697, 1025, 1207, 1775, 2911, 3485, 5041, 6035, 14555, 17425, 25205, 30175, 49487, 72775, 85697, 126025, 206681, 247435, 428485, 1033405, 1237175, 2142425, 3513577, 5167025, 17567885, 87839425]

約数ペア:

[(1, 87839425), (5, 17567885), (17, 5167025), (25, 3513577), (41, 2142425), (71, 1237175), (85, 1033405), (205, 428485), (355, 247435), (425, 206681), (697, 126025), (1025, 85697), (1207, 72775), (1775, 49487), (2911, 30175), (3485, 25205), (5041, 17425), (6035, 14555)]