81745144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1009}}^1$

素因数の和:1088

約数の個数: 64

約数和(自身を含む): 178164000

約数和(自身を除く): 96418856

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 41, 52, 76, 82, 104, 152, 164, 247, 328, 494, 533, 779, 988, 1009, 1066, 1558, 1976, 2018, 2132, 3116, 4036, 4264, 6232, 8072, 10127, 13117, 19171, 20254, 26234, 38342, 40508, 41369, 52468, 76684, 81016, 82738, 104936, 153368, 165476, 249223, 330952, 498446, 537797, 786011, 996892, 1075594, 1572022, 1993784, 2151188, 3144044, 4302376, 6288088, 10218143, 20436286, 40872572, 81745144]

約数ペア:

[(1, 81745144), (2, 40872572), (4, 20436286), (8, 10218143), (13, 6288088), (19, 4302376), (26, 3144044), (38, 2151188), (41, 1993784), (52, 1572022), (76, 1075594), (82, 996892), (104, 786011), (152, 537797), (164, 498446), (247, 330952), (328, 249223), (494, 165476), (533, 153368), (779, 104936), (988, 82738), (1009, 81016), (1066, 76684), (1558, 52468), (1976, 41369), (2018, 40508), (2132, 38342), (3116, 26234), (4036, 20254), (4264, 19171), (6232, 13117), (8072, 10127)]