220195820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{8731}}^1$

素因数の和:8850

約数の個数: 48

約数和(自身を含む): 503172768

約数和(自身を除く): 282976948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1261, 1940, 2522, 5044, 6305, 8731, 12610, 17462, 25220, 34924, 43655, 87310, 113503, 174620, 227006, 454012, 567515, 846907, 1135030, 1693814, 2270060, 3387628, 4234535, 8469070, 11009791, 16938140, 22019582, 44039164, 55048955, 110097910, 220195820]

約数ペア:

[(1, 220195820), (2, 110097910), (4, 55048955), (5, 44039164), (10, 22019582), (13, 16938140), (20, 11009791), (26, 8469070), (52, 4234535), (65, 3387628), (97, 2270060), (130, 1693814), (194, 1135030), (260, 846907), (388, 567515), (485, 454012), (970, 227006), (1261, 174620), (1940, 113503), (2522, 87310), (5044, 43655), (6305, 34924), (8731, 25220), (12610, 17462)]