51208605

素因数分解:

$3^8\times 5^1\times 7^1\times {\mathrm{223}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 105810432

約数和(自身を除く): 54601827

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 223, 243, 315, 405, 567, 669, 729, 945, 1115, 1215, 1561, 1701, 2007, 2187, 2835, 3345, 3645, 4683, 5103, 6021, 6561, 7805, 8505, 10035, 10935, 14049, 15309, 18063, 23415, 25515, 30105, 32805, 42147, 45927, 54189, 70245, 76545, 90315, 126441, 162567, 210735, 229635, 270945, 379323, 487701, 632205, 812835, 1137969, 1463103, 1896615, 2438505, 3413907, 5689845, 7315515, 10241721, 17069535, 51208605]

約数ペア:

[(1, 51208605), (3, 17069535), (5, 10241721), (7, 7315515), (9, 5689845), (15, 3413907), (21, 2438505), (27, 1896615), (35, 1463103), (45, 1137969), (63, 812835), (81, 632205), (105, 487701), (135, 379323), (189, 270945), (223, 229635), (243, 210735), (315, 162567), (405, 126441), (567, 90315), (669, 76545), (729, 70245), (945, 54189), (1115, 45927), (1215, 42147), (1561, 32805), (1701, 30105), (2007, 25515), (2187, 23415), (2835, 18063), (3345, 15309), (3645, 14049), (4683, 10935), (5103, 10035), (6021, 8505), (6561, 7805)]