81423505

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{823}}^1$

素因数の和:1296

約数の個数: 16

約数和(自身を含む): 100145664

約数和(自身を除く): 18722159

約数列:

[1, 5, 47, 235, 421, 823, 2105, 4115, 19787, 38681, 98935, 193405, 346483, 1732415, 16284701, 81423505]

約数ペア:

[(1, 81423505), (5, 16284701), (47, 1732415), (235, 346483), (421, 193405), (823, 98935), (2105, 38681), (4115, 19787)]