1983520

素因数分解:

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

素因数の和:63

約数の個数: 144

約数和(自身を含む): 6205248

約数和(自身を除く): 4221728

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 23, 28, 32, 35, 40, 44, 46, 49, 55, 56, 70, 77, 80, 88, 92, 98, 110, 112, 115, 140, 154, 160, 161, 176, 184, 196, 220, 224, 230, 245, 253, 280, 308, 322, 352, 368, 385, 392, 440, 460, 490, 506, 539, 560, 616, 644, 736, 770, 784, 805, 880, 920, 980, 1012, 1078, 1120, 1127, 1232, 1265, 1288, 1540, 1568, 1610, 1760, 1771, 1840, 1960, 2024, 2156, 2254, 2464, 2530, 2576, 2695, 3080, 3220, 3542, 3680, 3920, 4048, 4312, 4508, 5060, 5152, 5390, 5635, 6160, 6440, 7084, 7840, 8096, 8624, 8855, 9016, 10120, 10780, 11270, 12320, 12397, 12880, 14168, 17248, 17710, 18032, 20240, 21560, 22540, 24794, 25760, 28336, 35420, 36064, 40480, 43120, 45080, 49588, 56672, 61985, 70840, 86240, 90160, 99176, 123970, 141680, 180320, 198352, 247940, 283360, 396704, 495880, 991760, 1983520]

約数ペア:

[(1, 1983520), (2, 991760), (4, 495880), (5, 396704), (7, 283360), (8, 247940), (10, 198352), (11, 180320), (14, 141680), (16, 123970), (20, 99176), (22, 90160), (23, 86240), (28, 70840), (32, 61985), (35, 56672), (40, 49588), (44, 45080), (46, 43120), (49, 40480), (55, 36064), (56, 35420), (70, 28336), (77, 25760), (80, 24794), (88, 22540), (92, 21560), (98, 20240), (110, 18032), (112, 17710), (115, 17248), (140, 14168), (154, 12880), (160, 12397), (161, 12320), (176, 11270), (184, 10780), (196, 10120), (220, 9016), (224, 8855), (230, 8624), (245, 8096), (253, 7840), (280, 7084), (308, 6440), (322, 6160), (352, 5635), (368, 5390), (385, 5152), (392, 5060), (440, 4508), (460, 4312), (490, 4048), (506, 3920), (539, 3680), (560, 3542), (616, 3220), (644, 3080), (736, 2695), (770, 2576), (784, 2530), (805, 2464), (880, 2254), (920, 2156), (980, 2024), (1012, 1960), (1078, 1840), (1120, 1771), (1127, 1760), (1232, 1610), (1265, 1568), (1288, 1540)]