256621392

素因数分解:

$2^4\times 3^3\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:538

約数の個数: 160

約数和(自身を含む): 791199360

約数和(自身を除く): 534577968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 34, 36, 48, 51, 54, 68, 72, 83, 102, 108, 136, 144, 153, 166, 204, 216, 249, 272, 306, 332, 408, 421, 432, 459, 498, 612, 664, 747, 816, 842, 918, 996, 1224, 1263, 1328, 1411, 1494, 1684, 1836, 1992, 2241, 2448, 2526, 2822, 2988, 3368, 3672, 3789, 3984, 4233, 4482, 5052, 5644, 5976, 6736, 7157, 7344, 7578, 8466, 8964, 10104, 11288, 11367, 11952, 12699, 14314, 15156, 16932, 17928, 20208, 21471, 22576, 22734, 25398, 28628, 30312, 33864, 34943, 35856, 38097, 42942, 45468, 50796, 57256, 60624, 64413, 67728, 69886, 76194, 85884, 90936, 101592, 104829, 114512, 128826, 139772, 152388, 171768, 181872, 193239, 203184, 209658, 257652, 279544, 304776, 314487, 343536, 386478, 419316, 515304, 559088, 594031, 609552, 628974, 772956, 838632, 943461, 1030608, 1188062, 1257948, 1545912, 1677264, 1782093, 1886922, 2376124, 2515896, 3091824, 3564186, 3773844, 4752248, 5031792, 5346279, 7128372, 7547688, 9504496, 10692558, 14256744, 15095376, 16038837, 21385116, 28513488, 32077674, 42770232, 64155348, 85540464, 128310696, 256621392]

約数ペア:

[(1, 256621392), (2, 128310696), (3, 85540464), (4, 64155348), (6, 42770232), (8, 32077674), (9, 28513488), (12, 21385116), (16, 16038837), (17, 15095376), (18, 14256744), (24, 10692558), (27, 9504496), (34, 7547688), (36, 7128372), (48, 5346279), (51, 5031792), (54, 4752248), (68, 3773844), (72, 3564186), (83, 3091824), (102, 2515896), (108, 2376124), (136, 1886922), (144, 1782093), (153, 1677264), (166, 1545912), (204, 1257948), (216, 1188062), (249, 1030608), (272, 943461), (306, 838632), (332, 772956), (408, 628974), (421, 609552), (432, 594031), (459, 559088), (498, 515304), (612, 419316), (664, 386478), (747, 343536), (816, 314487), (842, 304776), (918, 279544), (996, 257652), (1224, 209658), (1263, 203184), (1328, 193239), (1411, 181872), (1494, 171768), (1684, 152388), (1836, 139772), (1992, 128826), (2241, 114512), (2448, 104829), (2526, 101592), (2822, 90936), (2988, 85884), (3368, 76194), (3672, 69886), (3789, 67728), (3984, 64413), (4233, 60624), (4482, 57256), (5052, 50796), (5644, 45468), (5976, 42942), (6736, 38097), (7157, 35856), (7344, 34943), (7578, 33864), (8466, 30312), (8964, 28628), (10104, 25398), (11288, 22734), (11367, 22576), (11952, 21471), (12699, 20208), (14314, 17928), (15156, 16932)]