208513960

素因数分解:

$2^3\times 5^1\times {\mathrm{983}}^1\times {\mathrm{5303}}^1$

素因数の和:6297

約数の個数: 32

約数和(自身を含む): 469722240

約数和(自身を除く): 261208280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 983, 1966, 3932, 4915, 5303, 7864, 9830, 10606, 19660, 21212, 26515, 39320, 42424, 53030, 106060, 212120, 5212849, 10425698, 20851396, 26064245, 41702792, 52128490, 104256980, 208513960]

約数ペア:

[(1, 208513960), (2, 104256980), (4, 52128490), (5, 41702792), (8, 26064245), (10, 20851396), (20, 10425698), (40, 5212849), (983, 212120), (1966, 106060), (3932, 53030), (4915, 42424), (5303, 39320), (7864, 26515), (9830, 21212), (10606, 19660)]