20931392912

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{809}}^1\times {\mathrm{4157}}^1$

素因数の和:5363

約数の個数: 40

約数和(自身を含む): 40718878200

約数和(自身を除く): 19787485288

約数列:

[1, 2, 4, 8, 16, 389, 778, 809, 1556, 1618, 3112, 3236, 4157, 6224, 6472, 8314, 12944, 16628, 33256, 66512, 314701, 629402, 1258804, 1617073, 2517608, 3234146, 3363013, 5035216, 6468292, 6726026, 12936584, 13452052, 25873168, 26904104, 53808208, 1308212057, 2616424114, 5232848228, 10465696456, 20931392912]

約数ペア:

[(1, 20931392912), (2, 10465696456), (4, 5232848228), (8, 2616424114), (16, 1308212057), (389, 53808208), (778, 26904104), (809, 25873168), (1556, 13452052), (1618, 12936584), (3112, 6726026), (3236, 6468292), (4157, 5035216), (6224, 3363013), (6472, 3234146), (8314, 2517608), (12944, 1617073), (16628, 1258804), (33256, 629402), (66512, 314701)]