16505720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 48522240

約数和(自身を除く): 32016520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 233, 253, 280, 308, 322, 385, 440, 460, 466, 506, 616, 644, 770, 805, 920, 932, 1012, 1165, 1265, 1288, 1540, 1610, 1631, 1771, 1864, 2024, 2330, 2530, 2563, 3080, 3220, 3262, 3542, 4660, 5060, 5126, 5359, 6440, 6524, 7084, 8155, 8855, 9320, 10120, 10252, 10718, 12815, 13048, 14168, 16310, 17710, 17941, 20504, 21436, 25630, 26795, 32620, 35420, 35882, 37513, 42872, 51260, 53590, 58949, 65240, 70840, 71764, 75026, 89705, 102520, 107180, 117898, 143528, 150052, 179410, 187565, 214360, 235796, 294745, 300104, 358820, 375130, 412643, 471592, 589490, 717640, 750260, 825286, 1178980, 1500520, 1650572, 2063215, 2357960, 3301144, 4126430, 8252860, 16505720]

約数ペア:

[(1, 16505720), (2, 8252860), (4, 4126430), (5, 3301144), (7, 2357960), (8, 2063215), (10, 1650572), (11, 1500520), (14, 1178980), (20, 825286), (22, 750260), (23, 717640), (28, 589490), (35, 471592), (40, 412643), (44, 375130), (46, 358820), (55, 300104), (56, 294745), (70, 235796), (77, 214360), (88, 187565), (92, 179410), (110, 150052), (115, 143528), (140, 117898), (154, 107180), (161, 102520), (184, 89705), (220, 75026), (230, 71764), (233, 70840), (253, 65240), (280, 58949), (308, 53590), (322, 51260), (385, 42872), (440, 37513), (460, 35882), (466, 35420), (506, 32620), (616, 26795), (644, 25630), (770, 21436), (805, 20504), (920, 17941), (932, 17710), (1012, 16310), (1165, 14168), (1265, 13048), (1288, 12815), (1540, 10718), (1610, 10252), (1631, 10120), (1771, 9320), (1864, 8855), (2024, 8155), (2330, 7084), (2530, 6524), (2563, 6440), (3080, 5359), (3220, 5126), (3262, 5060), (3542, 4660)]