81508455

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 176836608

約数和(自身を除く): 95328153

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 31, 35, 45, 51, 63, 85, 93, 105, 119, 153, 155, 217, 255, 279, 315, 357, 465, 491, 527, 595, 651, 765, 1071, 1085, 1395, 1473, 1581, 1785, 1953, 2455, 2635, 3255, 3437, 3689, 4419, 4743, 5355, 7365, 7905, 8347, 9765, 10311, 11067, 15221, 17185, 18445, 22095, 23715, 25041, 30933, 33201, 41735, 45663, 51555, 55335, 58429, 75123, 76105, 106547, 125205, 136989, 154665, 166005, 175287, 228315, 258757, 292145, 319641, 375615, 525861, 532735, 684945, 776271, 876435, 958923, 1293785, 1598205, 1811299, 2328813, 2629305, 3881355, 4794615, 5433897, 9056495, 11644065, 16301691, 27169485, 81508455]

約数ペア:

[(1, 81508455), (3, 27169485), (5, 16301691), (7, 11644065), (9, 9056495), (15, 5433897), (17, 4794615), (21, 3881355), (31, 2629305), (35, 2328813), (45, 1811299), (51, 1598205), (63, 1293785), (85, 958923), (93, 876435), (105, 776271), (119, 684945), (153, 532735), (155, 525861), (217, 375615), (255, 319641), (279, 292145), (315, 258757), (357, 228315), (465, 175287), (491, 166005), (527, 154665), (595, 136989), (651, 125205), (765, 106547), (1071, 76105), (1085, 75123), (1395, 58429), (1473, 55335), (1581, 51555), (1785, 45663), (1953, 41735), (2455, 33201), (2635, 30933), (3255, 25041), (3437, 23715), (3689, 22095), (4419, 18445), (4743, 17185), (5355, 15221), (7365, 11067), (7905, 10311), (8347, 9765)]