20004205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1277}}^1$

素因数の和:1536

約数の個数: 16

約数和(自身を含む): 25979184

約数和(自身を除く): 5974979

約数列:

[1, 5, 13, 65, 241, 1205, 1277, 3133, 6385, 15665, 16601, 83005, 307757, 1538785, 4000841, 20004205]

約数ペア:

[(1, 20004205), (5, 4000841), (13, 1538785), (65, 307757), (241, 83005), (1205, 16601), (1277, 15665), (3133, 6385)]