26828560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:776

約数の個数: 80

約数和(自身を含む): 69727680

約数和(自身を除く): 42899120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 709, 860, 880, 946, 1418, 1720, 1892, 2365, 2836, 3440, 3545, 3784, 4730, 5672, 7090, 7568, 7799, 9460, 11344, 14180, 15598, 18920, 28360, 30487, 31196, 37840, 38995, 56720, 60974, 62392, 77990, 121948, 124784, 152435, 155980, 243896, 304870, 311960, 335357, 487792, 609740, 623920, 670714, 1219480, 1341428, 1676785, 2438960, 2682856, 3353570, 5365712, 6707140, 13414280, 26828560]

約数ペア:

[(1, 26828560), (2, 13414280), (4, 6707140), (5, 5365712), (8, 3353570), (10, 2682856), (11, 2438960), (16, 1676785), (20, 1341428), (22, 1219480), (40, 670714), (43, 623920), (44, 609740), (55, 487792), (80, 335357), (86, 311960), (88, 304870), (110, 243896), (172, 155980), (176, 152435), (215, 124784), (220, 121948), (344, 77990), (430, 62392), (440, 60974), (473, 56720), (688, 38995), (709, 37840), (860, 31196), (880, 30487), (946, 28360), (1418, 18920), (1720, 15598), (1892, 14180), (2365, 11344), (2836, 9460), (3440, 7799), (3545, 7568), (3784, 7090), (4730, 5672)]