79886840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3863}}^1$

素因数の和:3932

約数の個数: 64

約数和(自身を含む): 200309760

約数和(自身を除く): 120422920

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, 3863, 4136, 5170, 7726, 10340, 15452, 19315, 20680, 30904, 38630, 42493, 77260, 84986, 154520, 169972, 181561, 212465, 339944, 363122, 424930, 726244, 849860, 907805, 1452488, 1699720, 1815610, 1997171, 3631220, 3994342, 7262440, 7988684, 9985855, 15977368, 19971710, 39943420, 79886840]

約数ペア:

[(1, 79886840), (2, 39943420), (4, 19971710), (5, 15977368), (8, 9985855), (10, 7988684), (11, 7262440), (20, 3994342), (22, 3631220), (40, 1997171), (44, 1815610), (47, 1699720), (55, 1452488), (88, 907805), (94, 849860), (110, 726244), (188, 424930), (220, 363122), (235, 339944), (376, 212465), (440, 181561), (470, 169972), (517, 154520), (940, 84986), (1034, 77260), (1880, 42493), (2068, 38630), (2585, 30904), (3863, 20680), (4136, 19315), (5170, 15452), (7726, 10340)]