127928540

素因数分解:

$2^2\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{4909}}^1$

素因数の和:6221

約数の個数: 24

約数和(自身を含む): 268910880

約数和(自身を除く): 140982340

約数列:

[1, 2, 4, 5, 10, 20, 1303, 2606, 4909, 5212, 6515, 9818, 13030, 19636, 24545, 26060, 49090, 98180, 6396427, 12792854, 25585708, 31982135, 63964270, 127928540]

約数ペア:

[(1, 127928540), (2, 63964270), (4, 31982135), (5, 25585708), (10, 12792854), (20, 6396427), (1303, 98180), (2606, 49090), (4909, 26060), (5212, 24545), (6515, 19636), (9818, 13030)]