641406864

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:538

約数の個数: 240

約数和(自身を含む): 2098913280

約数和(自身を除く): 1457506416

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 31, 38, 42, 48, 49, 56, 57, 62, 76, 84, 93, 98, 112, 114, 124, 133, 147, 152, 168, 186, 196, 217, 228, 248, 266, 294, 304, 336, 372, 392, 399, 434, 456, 463, 496, 532, 588, 589, 651, 744, 784, 798, 868, 912, 926, 931, 1064, 1176, 1178, 1302, 1389, 1488, 1519, 1596, 1736, 1767, 1852, 1862, 2128, 2352, 2356, 2604, 2778, 2793, 3038, 3192, 3241, 3472, 3534, 3704, 3724, 4123, 4557, 4712, 5208, 5556, 5586, 6076, 6384, 6482, 7068, 7408, 7448, 8246, 8797, 9114, 9424, 9723, 10416, 11112, 11172, 12152, 12369, 12964, 14136, 14353, 14896, 16492, 17594, 18228, 19446, 22224, 22344, 22687, 24304, 24738, 25928, 26391, 28272, 28706, 28861, 32984, 35188, 36456, 38892, 43059, 44688, 45374, 49476, 51856, 52782, 57412, 57722, 61579, 65968, 68061, 70376, 72912, 77784, 86118, 86583, 90748, 98952, 100471, 105564, 114824, 115444, 123158, 136122, 140752, 155568, 172236, 173166, 181496, 184737, 197904, 200942, 211128, 229648, 230888, 246316, 272244, 272707, 301413, 344472, 346332, 362992, 369474, 401884, 422256, 431053, 461776, 492632, 544488, 545414, 602826, 688944, 692664, 703297, 738948, 803768, 818121, 862106, 985264, 1088976, 1090828, 1205652, 1293159, 1385328, 1406594, 1477896, 1607536, 1636242, 1724212, 1908949, 2109891, 2181656, 2411304, 2586318, 2813188, 2955792, 3272484, 3448424, 3817898, 4219782, 4363312, 4822608, 5172636, 5626376, 5726847, 6544968, 6896848, 7635796, 8439564, 10345272, 11252752, 11453694, 13089936, 13362643, 15271592, 16879128, 20690544, 22907388, 26725286, 30543184, 33758256, 40087929, 45814776, 53450572, 80175858, 91629552, 106901144, 160351716, 213802288, 320703432, 641406864]

約数ペア:

[(1, 641406864), (2, 320703432), (3, 213802288), (4, 160351716), (6, 106901144), (7, 91629552), (8, 80175858), (12, 53450572), (14, 45814776), (16, 40087929), (19, 33758256), (21, 30543184), (24, 26725286), (28, 22907388), (31, 20690544), (38, 16879128), (42, 15271592), (48, 13362643), (49, 13089936), (56, 11453694), (57, 11252752), (62, 10345272), (76, 8439564), (84, 7635796), (93, 6896848), (98, 6544968), (112, 5726847), (114, 5626376), (124, 5172636), (133, 4822608), (147, 4363312), (152, 4219782), (168, 3817898), (186, 3448424), (196, 3272484), (217, 2955792), (228, 2813188), (248, 2586318), (266, 2411304), (294, 2181656), (304, 2109891), (336, 1908949), (372, 1724212), (392, 1636242), (399, 1607536), (434, 1477896), (456, 1406594), (463, 1385328), (496, 1293159), (532, 1205652), (588, 1090828), (589, 1088976), (651, 985264), (744, 862106), (784, 818121), (798, 803768), (868, 738948), (912, 703297), (926, 692664), (931, 688944), (1064, 602826), (1176, 545414), (1178, 544488), (1302, 492632), (1389, 461776), (1488, 431053), (1519, 422256), (1596, 401884), (1736, 369474), (1767, 362992), (1852, 346332), (1862, 344472), (2128, 301413), (2352, 272707), (2356, 272244), (2604, 246316), (2778, 230888), (2793, 229648), (3038, 211128), (3192, 200942), (3241, 197904), (3472, 184737), (3534, 181496), (3704, 173166), (3724, 172236), (4123, 155568), (4557, 140752), (4712, 136122), (5208, 123158), (5556, 115444), (5586, 114824), (6076, 105564), (6384, 100471), (6482, 98952), (7068, 90748), (7408, 86583), (7448, 86118), (8246, 77784), (8797, 72912), (9114, 70376), (9424, 68061), (9723, 65968), (10416, 61579), (11112, 57722), (11172, 57412), (12152, 52782), (12369, 51856), (12964, 49476), (14136, 45374), (14353, 44688), (14896, 43059), (16492, 38892), (17594, 36456), (18228, 35188), (19446, 32984), (22224, 28861), (22344, 28706), (22687, 28272), (24304, 26391), (24738, 25928)]