81081616

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 204764672

約数和(自身を除く): 123683056

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 121, 124, 154, 176, 193, 217, 242, 248, 308, 341, 386, 434, 484, 496, 616, 682, 772, 847, 868, 968, 1232, 1351, 1364, 1544, 1694, 1736, 1936, 2123, 2387, 2702, 2728, 3088, 3388, 3472, 3751, 4246, 4774, 5404, 5456, 5983, 6776, 7502, 8492, 9548, 10808, 11966, 13552, 14861, 15004, 16984, 19096, 21616, 23353, 23932, 26257, 29722, 30008, 33968, 38192, 41881, 46706, 47864, 52514, 59444, 60016, 65813, 83762, 93412, 95728, 105028, 118888, 131626, 163471, 167524, 186824, 210056, 237776, 263252, 326942, 335048, 373648, 420112, 460691, 526504, 653884, 670096, 723943, 921382, 1053008, 1307768, 1447886, 1842764, 2615536, 2895772, 3685528, 5067601, 5791544, 7371056, 10135202, 11583088, 20270404, 40540808, 81081616]

約数ペア:

[(1, 81081616), (2, 40540808), (4, 20270404), (7, 11583088), (8, 10135202), (11, 7371056), (14, 5791544), (16, 5067601), (22, 3685528), (28, 2895772), (31, 2615536), (44, 1842764), (56, 1447886), (62, 1307768), (77, 1053008), (88, 921382), (112, 723943), (121, 670096), (124, 653884), (154, 526504), (176, 460691), (193, 420112), (217, 373648), (242, 335048), (248, 326942), (308, 263252), (341, 237776), (386, 210056), (434, 186824), (484, 167524), (496, 163471), (616, 131626), (682, 118888), (772, 105028), (847, 95728), (868, 93412), (968, 83762), (1232, 65813), (1351, 60016), (1364, 59444), (1544, 52514), (1694, 47864), (1736, 46706), (1936, 41881), (2123, 38192), (2387, 33968), (2702, 30008), (2728, 29722), (3088, 26257), (3388, 23932), (3472, 23353), (3751, 21616), (4246, 19096), (4774, 16984), (5404, 15004), (5456, 14861), (5983, 13552), (6776, 11966), (7502, 10808), (8492, 9548)]