990903760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{160861}}^1$

素因数の和:160892

約数の個数: 80

約数和(自身を含む): 2872351872

約数和(自身を除く): 1881448112

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 160861, 321722, 643444, 804305, 1126027, 1286888, 1608610, 1769471, 2252054, 2573776, 3217220, 3538942, 4504108, 5630135, 6434440, 7077884, 8847355, 9008216, 11260270, 12386297, 12868880, 14155768, 17694710, 18016432, 22520540, 24772594, 28311536, 35389420, 45041080, 49545188, 61931485, 70778840, 90082160, 99090376, 123862970, 141557680, 198180752, 247725940, 495451880, 990903760]

約数ペア:

[(1, 990903760), (2, 495451880), (4, 247725940), (5, 198180752), (7, 141557680), (8, 123862970), (10, 99090376), (11, 90082160), (14, 70778840), (16, 61931485), (20, 49545188), (22, 45041080), (28, 35389420), (35, 28311536), (40, 24772594), (44, 22520540), (55, 18016432), (56, 17694710), (70, 14155768), (77, 12868880), (80, 12386297), (88, 11260270), (110, 9008216), (112, 8847355), (140, 7077884), (154, 6434440), (176, 5630135), (220, 4504108), (280, 3538942), (308, 3217220), (385, 2573776), (440, 2252054), (560, 1769471), (616, 1608610), (770, 1286888), (880, 1126027), (1232, 804305), (1540, 643444), (3080, 321722), (6160, 160861)]