208068520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{472883}}^1$

素因数の和:472905

約数の個数: 32

約数和(自身を含む): 510714720

約数和(自身を除く): 302646200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 472883, 945766, 1891532, 2364415, 3783064, 4728830, 5201713, 9457660, 10403426, 18915320, 20806852, 26008565, 41613704, 52017130, 104034260, 208068520]

約数ペア:

[(1, 208068520), (2, 104034260), (4, 52017130), (5, 41613704), (8, 26008565), (10, 20806852), (11, 18915320), (20, 10403426), (22, 9457660), (40, 5201713), (44, 4728830), (55, 3783064), (88, 2364415), (110, 1891532), (220, 945766), (440, 472883)]