81154975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6863}}^1$

素因数の和:6927

約数の個数: 24

約数和(自身を含む): 112349952

約数和(自身を除く): 31194977

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 2365, 6863, 11825, 34315, 75493, 171575, 295109, 377465, 1475545, 1887325, 3246199, 7377725, 16230995, 81154975]

約数ペア:

[(1, 81154975), (5, 16230995), (11, 7377725), (25, 3246199), (43, 1887325), (55, 1475545), (215, 377465), (275, 295109), (473, 171575), (1075, 75493), (2365, 34315), (6863, 11825)]