3971140

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1097}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 8393112

約数和(自身を除く): 4421972

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1097, 1810, 2194, 3620, 4388, 5485, 10970, 21940, 198557, 397114, 794228, 992785, 1985570, 3971140]

約数ペア:

[(1, 3971140), (2, 1985570), (4, 992785), (5, 794228), (10, 397114), (20, 198557), (181, 21940), (362, 10970), (724, 5485), (905, 4388), (1097, 3620), (1810, 2194)]