2080558820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{983}}^1\times {\mathrm{1091}}^1$

素因数の和:2180

約数の個数: 48

約数和(自身を含む): 4422757248

約数和(自身を除く): 2342198428

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 983, 1091, 1940, 1966, 2182, 3932, 4364, 4915, 5455, 9830, 10910, 19660, 21820, 95351, 105827, 190702, 211654, 381404, 423308, 476755, 529135, 953510, 1058270, 1072453, 1907020, 2116540, 2144906, 4289812, 5362265, 10724530, 21449060, 104027941, 208055882, 416111764, 520139705, 1040279410, 2080558820]

約数ペア:

[(1, 2080558820), (2, 1040279410), (4, 520139705), (5, 416111764), (10, 208055882), (20, 104027941), (97, 21449060), (194, 10724530), (388, 5362265), (485, 4289812), (970, 2144906), (983, 2116540), (1091, 1907020), (1940, 1072453), (1966, 1058270), (2182, 953510), (3932, 529135), (4364, 476755), (4915, 423308), (5455, 381404), (9830, 211654), (10910, 190702), (19660, 105827), (21820, 95351)]