20159985

素因数分解:

$3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{3851}}^1$

素因数の和:4208

約数の個数: 16

約数和(自身を含む): 32356800

約数和(自身を除く): 12196815

約数列:

[1, 3, 5, 15, 349, 1047, 1745, 3851, 5235, 11553, 19255, 57765, 1343999, 4031997, 6719995, 20159985]

約数ペア:

[(1, 20159985), (3, 6719995), (5, 4031997), (15, 1343999), (349, 57765), (1047, 19255), (1745, 11553), (3851, 5235)]