16905680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19211}}^1$

素因数の和:19235

約数の個数: 40

約数和(自身を含む): 42881184

約数和(自身を除く): 25975504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 19211, 38422, 76844, 96055, 153688, 192110, 211321, 307376, 384220, 422642, 768440, 845284, 1056605, 1536880, 1690568, 2113210, 3381136, 4226420, 8452840, 16905680]

約数ペア:

[(1, 16905680), (2, 8452840), (4, 4226420), (5, 3381136), (8, 2113210), (10, 1690568), (11, 1536880), (16, 1056605), (20, 845284), (22, 768440), (40, 422642), (44, 384220), (55, 307376), (80, 211321), (88, 192110), (110, 153688), (176, 96055), (220, 76844), (440, 38422), (880, 19211)]