194901680

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{17783}}^1$

素因数の和:17933

約数の個数: 40

約数和(自身を含む): 456479712

約数和(自身を除く): 261578032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 5480, 10960, 17783, 35566, 71132, 88915, 142264, 177830, 284528, 355660, 711320, 1422640, 2436271, 4872542, 9745084, 12181355, 19490168, 24362710, 38980336, 48725420, 97450840, 194901680]

約数ペア:

[(1, 194901680), (2, 97450840), (4, 48725420), (5, 38980336), (8, 24362710), (10, 19490168), (16, 12181355), (20, 9745084), (40, 4872542), (80, 2436271), (137, 1422640), (274, 711320), (548, 355660), (685, 284528), (1096, 177830), (1370, 142264), (2192, 88915), (2740, 71132), (5480, 35566), (10960, 17783)]