27797980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1097}}^1$

素因数の和:1294

約数の個数: 48

約数和(自身を含む): 67144896

約数和(自身を除く): 39346916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 905, 1097, 1267, 1810, 2194, 2534, 3620, 4388, 5068, 5485, 6335, 7679, 10970, 12670, 15358, 21940, 25340, 30716, 38395, 76790, 153580, 198557, 397114, 794228, 992785, 1389899, 1985570, 2779798, 3971140, 5559596, 6949495, 13898990, 27797980]

約数ペア:

[(1, 27797980), (2, 13898990), (4, 6949495), (5, 5559596), (7, 3971140), (10, 2779798), (14, 1985570), (20, 1389899), (28, 992785), (35, 794228), (70, 397114), (140, 198557), (181, 153580), (362, 76790), (724, 38395), (905, 30716), (1097, 25340), (1267, 21940), (1810, 15358), (2194, 12670), (2534, 10970), (3620, 7679), (4388, 6335), (5068, 5485)]