278843160980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3917}}^1\times {\mathrm{25981}}^1$

素因数の和:30044

約数の個数: 48

約数和(自身を含む): 590018170896

約数和(自身を除く): 311175009916

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 3917, 7834, 15668, 19585, 25981, 39170, 51962, 78340, 103924, 129905, 259810, 519620, 536629, 1073258, 2146516, 2683145, 3559397, 5366290, 7118794, 10732580, 14237588, 17796985, 35593970, 71187940, 101767577, 203535154, 407070308, 508837885, 1017675770, 2035351540, 13942158049, 27884316098, 55768632196, 69710790245, 139421580490, 278843160980]

約数ペア:

[(1, 278843160980), (2, 139421580490), (4, 69710790245), (5, 55768632196), (10, 27884316098), (20, 13942158049), (137, 2035351540), (274, 1017675770), (548, 508837885), (685, 407070308), (1370, 203535154), (2740, 101767577), (3917, 71187940), (7834, 35593970), (15668, 17796985), (19585, 14237588), (25981, 10732580), (39170, 7118794), (51962, 5366290), (78340, 3559397), (103924, 2683145), (129905, 2146516), (259810, 1073258), (519620, 536629)]