991760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:61

約数の個数: 120

約数和(自身を含む): 3053376

約数和(自身を除く): 2061616

約数列:

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

約数ペア:

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