261421512

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1879}}^1$

素因数の和:1947

約数の個数: 128

約数和(自身を含む): 779673600

約数和(自身を除く): 518252088

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 31, 33, 34, 44, 51, 62, 66, 68, 88, 93, 102, 124, 132, 136, 186, 187, 204, 248, 264, 341, 372, 374, 408, 527, 561, 682, 744, 748, 1023, 1054, 1122, 1364, 1496, 1581, 1879, 2046, 2108, 2244, 2728, 3162, 3758, 4092, 4216, 4488, 5637, 5797, 6324, 7516, 8184, 11274, 11594, 12648, 15032, 17391, 20669, 22548, 23188, 31943, 34782, 41338, 45096, 46376, 58249, 62007, 63886, 69564, 82676, 95829, 116498, 124014, 127772, 139128, 165352, 174747, 191658, 232996, 248028, 255544, 349494, 351373, 383316, 465992, 496056, 640739, 698988, 702746, 766632, 990233, 1054119, 1281478, 1397976, 1405492, 1922217, 1980466, 2108238, 2562956, 2810984, 2970699, 3844434, 3960932, 4216476, 5125912, 5941398, 7688868, 7921864, 8432952, 10892563, 11882796, 15377736, 21785126, 23765592, 32677689, 43570252, 65355378, 87140504, 130710756, 261421512]

約数ペア:

[(1, 261421512), (2, 130710756), (3, 87140504), (4, 65355378), (6, 43570252), (8, 32677689), (11, 23765592), (12, 21785126), (17, 15377736), (22, 11882796), (24, 10892563), (31, 8432952), (33, 7921864), (34, 7688868), (44, 5941398), (51, 5125912), (62, 4216476), (66, 3960932), (68, 3844434), (88, 2970699), (93, 2810984), (102, 2562956), (124, 2108238), (132, 1980466), (136, 1922217), (186, 1405492), (187, 1397976), (204, 1281478), (248, 1054119), (264, 990233), (341, 766632), (372, 702746), (374, 698988), (408, 640739), (527, 496056), (561, 465992), (682, 383316), (744, 351373), (748, 349494), (1023, 255544), (1054, 248028), (1122, 232996), (1364, 191658), (1496, 174747), (1581, 165352), (1879, 139128), (2046, 127772), (2108, 124014), (2244, 116498), (2728, 95829), (3162, 82676), (3758, 69564), (4092, 63886), (4216, 62007), (4488, 58249), (5637, 46376), (5797, 45096), (6324, 41338), (7516, 34782), (8184, 31943), (11274, 23188), (11594, 22548), (12648, 20669), (15032, 17391)]