90984520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{206783}}^1$

素因数の和:206805

約数の個数: 32

約数和(自身を含む): 223326720

約数和(自身を除く): 132342200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 206783, 413566, 827132, 1033915, 1654264, 2067830, 2274613, 4135660, 4549226, 8271320, 9098452, 11373065, 18196904, 22746130, 45492260, 90984520]

約数ペア:

[(1, 90984520), (2, 45492260), (4, 22746130), (5, 18196904), (8, 11373065), (10, 9098452), (11, 8271320), (20, 4549226), (22, 4135660), (40, 2274613), (44, 2067830), (55, 1654264), (88, 1033915), (110, 827132), (220, 413566), (440, 206783)]