644705264

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:431

約数の個数: 160

約数和(自身を含む): 1609420800

約数和(自身を除く): 964715536

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 31, 38, 56, 58, 62, 76, 112, 116, 124, 133, 152, 203, 217, 232, 248, 266, 304, 337, 406, 434, 464, 496, 532, 551, 589, 674, 812, 868, 899, 1064, 1102, 1178, 1348, 1624, 1736, 1798, 2128, 2204, 2356, 2359, 2696, 3248, 3472, 3596, 3857, 4123, 4408, 4712, 4718, 5392, 6293, 6403, 7192, 7714, 8246, 8816, 9424, 9436, 9773, 10447, 12586, 12806, 14384, 15428, 16492, 17081, 18872, 19546, 20894, 25172, 25612, 30856, 32984, 34162, 37744, 39092, 41788, 44821, 50344, 51224, 61712, 65968, 68324, 68411, 73129, 78184, 83576, 89642, 100688, 102448, 119567, 136648, 136822, 146258, 156368, 167152, 179284, 185687, 198493, 239134, 273296, 273644, 292516, 302963, 358568, 371374, 396986, 478268, 547288, 585032, 605926, 717136, 742748, 793972, 956536, 1094576, 1170064, 1211852, 1299809, 1389451, 1485496, 1587944, 1913072, 2120741, 2423704, 2599618, 2778902, 2970992, 3175888, 4241482, 4847408, 5199236, 5557804, 5756297, 8482964, 10398472, 11115608, 11512594, 16965928, 20796944, 22231216, 23025188, 33931856, 40294079, 46050376, 80588158, 92100752, 161176316, 322352632, 644705264]

約数ペア:

[(1, 644705264), (2, 322352632), (4, 161176316), (7, 92100752), (8, 80588158), (14, 46050376), (16, 40294079), (19, 33931856), (28, 23025188), (29, 22231216), (31, 20796944), (38, 16965928), (56, 11512594), (58, 11115608), (62, 10398472), (76, 8482964), (112, 5756297), (116, 5557804), (124, 5199236), (133, 4847408), (152, 4241482), (203, 3175888), (217, 2970992), (232, 2778902), (248, 2599618), (266, 2423704), (304, 2120741), (337, 1913072), (406, 1587944), (434, 1485496), (464, 1389451), (496, 1299809), (532, 1211852), (551, 1170064), (589, 1094576), (674, 956536), (812, 793972), (868, 742748), (899, 717136), (1064, 605926), (1102, 585032), (1178, 547288), (1348, 478268), (1624, 396986), (1736, 371374), (1798, 358568), (2128, 302963), (2204, 292516), (2356, 273644), (2359, 273296), (2696, 239134), (3248, 198493), (3472, 185687), (3596, 179284), (3857, 167152), (4123, 156368), (4408, 146258), (4712, 136822), (4718, 136648), (5392, 119567), (6293, 102448), (6403, 100688), (7192, 89642), (7714, 83576), (8246, 78184), (8816, 73129), (9424, 68411), (9436, 68324), (9773, 65968), (10447, 61712), (12586, 51224), (12806, 50344), (14384, 44821), (15428, 41788), (16492, 39092), (17081, 37744), (18872, 34162), (19546, 32984), (20894, 30856), (25172, 25612)]