208905120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{607}}^1$

素因数の和:867

約数の個数: 144

約数和(自身を含む): 717050880

約数和(自身を除く): 508145760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 239, 240, 288, 360, 478, 480, 607, 717, 720, 956, 1195, 1214, 1434, 1440, 1821, 1912, 2151, 2390, 2428, 2868, 3035, 3585, 3642, 3824, 4302, 4780, 4856, 5463, 5736, 6070, 7170, 7284, 7648, 8604, 9105, 9560, 9712, 10755, 10926, 11472, 12140, 14340, 14568, 17208, 18210, 19120, 19424, 21510, 21852, 22944, 24280, 27315, 28680, 29136, 34416, 36420, 38240, 43020, 43704, 48560, 54630, 57360, 58272, 68832, 72840, 86040, 87408, 97120, 109260, 114720, 145073, 145680, 172080, 174816, 218520, 290146, 291360, 344160, 435219, 437040, 580292, 725365, 870438, 874080, 1160584, 1305657, 1450730, 1740876, 2176095, 2321168, 2611314, 2901460, 3481752, 4352190, 4642336, 5222628, 5802920, 6528285, 6963504, 8704380, 10445256, 11605840, 13056570, 13927008, 17408760, 20890512, 23211680, 26113140, 34817520, 41781024, 52226280, 69635040, 104452560, 208905120]

約数ペア:

[(1, 208905120), (2, 104452560), (3, 69635040), (4, 52226280), (5, 41781024), (6, 34817520), (8, 26113140), (9, 23211680), (10, 20890512), (12, 17408760), (15, 13927008), (16, 13056570), (18, 11605840), (20, 10445256), (24, 8704380), (30, 6963504), (32, 6528285), (36, 5802920), (40, 5222628), (45, 4642336), (48, 4352190), (60, 3481752), (72, 2901460), (80, 2611314), (90, 2321168), (96, 2176095), (120, 1740876), (144, 1450730), (160, 1305657), (180, 1160584), (239, 874080), (240, 870438), (288, 725365), (360, 580292), (478, 437040), (480, 435219), (607, 344160), (717, 291360), (720, 290146), (956, 218520), (1195, 174816), (1214, 172080), (1434, 145680), (1440, 145073), (1821, 114720), (1912, 109260), (2151, 97120), (2390, 87408), (2428, 86040), (2868, 72840), (3035, 68832), (3585, 58272), (3642, 57360), (3824, 54630), (4302, 48560), (4780, 43704), (4856, 43020), (5463, 38240), (5736, 36420), (6070, 34416), (7170, 29136), (7284, 28680), (7648, 27315), (8604, 24280), (9105, 22944), (9560, 21852), (9712, 21510), (10755, 19424), (10926, 19120), (11472, 18210), (12140, 17208), (14340, 14568)]