81415176

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 229340160

約数和(自身を除く): 147924984

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 31, 34, 41, 51, 62, 68, 82, 93, 102, 123, 124, 136, 157, 164, 186, 204, 246, 248, 314, 328, 372, 408, 471, 492, 527, 628, 697, 744, 942, 984, 1054, 1256, 1271, 1394, 1581, 1884, 2091, 2108, 2542, 2669, 2788, 3162, 3768, 3813, 4182, 4216, 4867, 5084, 5338, 5576, 6324, 6437, 7626, 8007, 8364, 9734, 10168, 10676, 12648, 12874, 14601, 15252, 16014, 16728, 19311, 19468, 21352, 21607, 25748, 29202, 30504, 32028, 38622, 38936, 43214, 51496, 58404, 64056, 64821, 77244, 82739, 86428, 109429, 116808, 129642, 154488, 165478, 172856, 199547, 218858, 248217, 259284, 328287, 330956, 399094, 437716, 496434, 518568, 598641, 656574, 661912, 798188, 875432, 992868, 1197282, 1313148, 1596376, 1985736, 2394564, 2626296, 3392299, 4789128, 6784598, 10176897, 13569196, 20353794, 27138392, 40707588, 81415176]

約数ペア:

[(1, 81415176), (2, 40707588), (3, 27138392), (4, 20353794), (6, 13569196), (8, 10176897), (12, 6784598), (17, 4789128), (24, 3392299), (31, 2626296), (34, 2394564), (41, 1985736), (51, 1596376), (62, 1313148), (68, 1197282), (82, 992868), (93, 875432), (102, 798188), (123, 661912), (124, 656574), (136, 598641), (157, 518568), (164, 496434), (186, 437716), (204, 399094), (246, 330956), (248, 328287), (314, 259284), (328, 248217), (372, 218858), (408, 199547), (471, 172856), (492, 165478), (527, 154488), (628, 129642), (697, 116808), (744, 109429), (942, 86428), (984, 82739), (1054, 77244), (1256, 64821), (1271, 64056), (1394, 58404), (1581, 51496), (1884, 43214), (2091, 38936), (2108, 38622), (2542, 32028), (2669, 30504), (2788, 29202), (3162, 25748), (3768, 21607), (3813, 21352), (4182, 19468), (4216, 19311), (4867, 16728), (5084, 16014), (5338, 15252), (5576, 14601), (6324, 12874), (6437, 12648), (7626, 10676), (8007, 10168), (8364, 9734)]