82881425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{163}}^1$

素因数の和:270

約数の個数: 36

約数和(自身を含む): 115488144

約数和(自身を除く): 32606719

約数列:

[1, 5, 11, 25, 43, 55, 163, 215, 275, 473, 815, 1075, 1793, 1849, 2365, 4075, 7009, 8965, 9245, 11825, 20339, 35045, 44825, 46225, 77099, 101695, 175225, 301387, 385495, 508475, 1506935, 1927475, 3315257, 7534675, 16576285, 82881425]

約数ペア:

[(1, 82881425), (5, 16576285), (11, 7534675), (25, 3315257), (43, 1927475), (55, 1506935), (163, 508475), (215, 385495), (275, 301387), (473, 175225), (815, 101695), (1075, 77099), (1793, 46225), (1849, 44825), (2365, 35045), (4075, 20339), (7009, 11825), (8965, 9245)]