81907730

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{115363}}^1$

素因数の和:115441

約数の個数: 16

約数和(自身を含む): 149511744

約数和(自身を除く): 67604014

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 115363, 230726, 576815, 1153630, 8190773, 16381546, 40953865, 81907730]

約数ペア:

[(1, 81907730), (2, 40953865), (5, 16381546), (10, 8190773), (71, 1153630), (142, 576815), (355, 230726), (710, 115363)]