208458470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:413

約数の個数: 64

約数和(自身を含む): 419904000

約数和(自身を除く): 211445530

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 107, 110, 178, 199, 214, 398, 445, 535, 890, 979, 995, 1070, 1177, 1958, 1990, 2189, 2354, 4378, 4895, 5885, 9523, 9790, 10945, 11770, 17711, 19046, 21293, 21890, 35422, 42586, 47615, 88555, 95230, 104753, 106465, 177110, 194821, 209506, 212930, 234223, 389642, 468446, 523765, 974105, 1047530, 1171115, 1895077, 1948210, 2342230, 3790154, 9475385, 18950770, 20845847, 41691694, 104229235, 208458470]

約数ペア:

[(1, 208458470), (2, 104229235), (5, 41691694), (10, 20845847), (11, 18950770), (22, 9475385), (55, 3790154), (89, 2342230), (107, 1948210), (110, 1895077), (178, 1171115), (199, 1047530), (214, 974105), (398, 523765), (445, 468446), (535, 389642), (890, 234223), (979, 212930), (995, 209506), (1070, 194821), (1177, 177110), (1958, 106465), (1990, 104753), (2189, 95230), (2354, 88555), (4378, 47615), (4895, 42586), (5885, 35422), (9523, 21890), (9790, 21293), (10945, 19046), (11770, 17711)]