81615615

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1307}}^1$

素因数の和:1519

約数の個数: 32

約数和(自身を含む): 137120256

約数和(自身を除く): 55504641

約数列:

[1, 3, 5, 15, 23, 69, 115, 181, 345, 543, 905, 1307, 2715, 3921, 4163, 6535, 12489, 19605, 20815, 30061, 62445, 90183, 150305, 236567, 450915, 709701, 1182835, 3548505, 5441041, 16323123, 27205205, 81615615]

約数ペア:

[(1, 81615615), (3, 27205205), (5, 16323123), (15, 5441041), (23, 3548505), (69, 1182835), (115, 709701), (181, 450915), (345, 236567), (543, 150305), (905, 90183), (1307, 62445), (2715, 30061), (3921, 20815), (4163, 19605), (6535, 12489)]