81289495

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{136621}}^1$

素因数の和:136650

約数の個数: 16

約数和(自身を含む): 118041408

約数和(自身を除く): 36751913

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 136621, 683105, 956347, 2322557, 4781735, 11612785, 16257899, 81289495]

約数ペア:

[(1, 81289495), (5, 16257899), (7, 11612785), (17, 4781735), (35, 2322557), (85, 956347), (119, 683105), (595, 136621)]