78439240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3793}}^1$

素因数の和:3862

約数の個数: 64

約数和(自身を含む): 196680960

約数和(自身を除く): 118241720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 3793, 4136, 5170, 7586, 10340, 15172, 18965, 20680, 30344, 37930, 41723, 75860, 83446, 151720, 166892, 178271, 208615, 333784, 356542, 417230, 713084, 834460, 891355, 1426168, 1668920, 1782710, 1960981, 3565420, 3921962, 7130840, 7843924, 9804905, 15687848, 19609810, 39219620, 78439240]

約数ペア:

[(1, 78439240), (2, 39219620), (4, 19609810), (5, 15687848), (8, 9804905), (10, 7843924), (11, 7130840), (20, 3921962), (22, 3565420), (40, 1960981), (44, 1782710), (47, 1668920), (55, 1426168), (88, 891355), (94, 834460), (110, 713084), (188, 417230), (220, 356542), (235, 333784), (376, 208615), (440, 178271), (470, 166892), (517, 151720), (940, 83446), (1034, 75860), (1880, 41723), (2068, 37930), (2585, 30344), (3793, 20680), (4136, 18965), (5170, 15172), (7586, 10340)]