81418645

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{30211}}^1$

素因数の和:30241

約数の個数: 24

約数和(自身を含む): 123990048

約数和(自身を除く): 42571403

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 30211, 151055, 211477, 332321, 1057385, 1480339, 1661605, 2326247, 7401695, 11631235, 16283729, 81418645]

約数ペア:

[(1, 81418645), (5, 16283729), (7, 11631235), (11, 7401695), (35, 2326247), (49, 1661605), (55, 1480339), (77, 1057385), (245, 332321), (385, 211477), (539, 151055), (2695, 30211)]