399668368

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 930877920

約数和(自身を除く): 531209552

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 31, 34, 44, 62, 68, 88, 124, 136, 139, 176, 187, 248, 272, 278, 341, 374, 496, 527, 556, 682, 748, 961, 1054, 1112, 1364, 1496, 1529, 1922, 2108, 2224, 2363, 2728, 2992, 3058, 3844, 4216, 4309, 4726, 5456, 5797, 6116, 7688, 8432, 8618, 9452, 10571, 11594, 12232, 15376, 16337, 17236, 18904, 21142, 23188, 24464, 25993, 32674, 34472, 37808, 42284, 46376, 47399, 51986, 65348, 68944, 73253, 84568, 92752, 94798, 103972, 130696, 133579, 146506, 169136, 179707, 189596, 207944, 261392, 267158, 293012, 359414, 379192, 415888, 534316, 586024, 718828, 758384, 805783, 1068632, 1172048, 1437656, 1469369, 1611566, 2137264, 2270843, 2875312, 2938738, 3223132, 4541686, 5877476, 6446264, 9083372, 11754952, 12892528, 18166744, 23509904, 24979273, 36333488, 49958546, 99917092, 199834184, 399668368]

約数ペア:

[(1, 399668368), (2, 199834184), (4, 99917092), (8, 49958546), (11, 36333488), (16, 24979273), (17, 23509904), (22, 18166744), (31, 12892528), (34, 11754952), (44, 9083372), (62, 6446264), (68, 5877476), (88, 4541686), (124, 3223132), (136, 2938738), (139, 2875312), (176, 2270843), (187, 2137264), (248, 1611566), (272, 1469369), (278, 1437656), (341, 1172048), (374, 1068632), (496, 805783), (527, 758384), (556, 718828), (682, 586024), (748, 534316), (961, 415888), (1054, 379192), (1112, 359414), (1364, 293012), (1496, 267158), (1529, 261392), (1922, 207944), (2108, 189596), (2224, 179707), (2363, 169136), (2728, 146506), (2992, 133579), (3058, 130696), (3844, 103972), (4216, 94798), (4309, 92752), (4726, 84568), (5456, 73253), (5797, 68944), (6116, 65348), (7688, 51986), (8432, 47399), (8618, 46376), (9452, 42284), (10571, 37808), (11594, 34472), (12232, 32674), (15376, 25993), (16337, 24464), (17236, 23188), (18904, 21142)]