71649025

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2543}}^1$

素因数の和:2590

約数の個数: 36

約数和(自身を含む): 107885952

約数和(自身を除く): 36236927

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 805, 1127, 1225, 2543, 4025, 5635, 12715, 17801, 28175, 58489, 63575, 89005, 124607, 292445, 409423, 445025, 623035, 1462225, 2047115, 2865961, 3115175, 10235575, 14329805, 71649025]

約数ペア:

[(1, 71649025), (5, 14329805), (7, 10235575), (23, 3115175), (25, 2865961), (35, 2047115), (49, 1462225), (115, 623035), (161, 445025), (175, 409423), (245, 292445), (575, 124607), (805, 89005), (1127, 63575), (1225, 58489), (2543, 28175), (4025, 17801), (5635, 12715)]