1278719960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:250

約数の個数: 192

約数和(自身を含む): 3511771200

約数和(自身を除く): 2233051240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 89, 92, 97, 115, 140, 161, 178, 184, 194, 230, 280, 322, 356, 388, 445, 460, 485, 529, 623, 644, 679, 712, 776, 805, 890, 920, 970, 1058, 1246, 1288, 1358, 1610, 1780, 1940, 2047, 2116, 2231, 2492, 2645, 2716, 3115, 3220, 3395, 3560, 3703, 3880, 4094, 4232, 4462, 4984, 5290, 5432, 6230, 6440, 6790, 7406, 8188, 8633, 8924, 10235, 10580, 11155, 12460, 13580, 14329, 14812, 15617, 16376, 17266, 17848, 18515, 20470, 21160, 22310, 24920, 27160, 28658, 29624, 31234, 34532, 37030, 40940, 43165, 44620, 47081, 51313, 57316, 60431, 62468, 69064, 71645, 74060, 78085, 81880, 86330, 89240, 94162, 102626, 114632, 120862, 124936, 143290, 148120, 156170, 172660, 188324, 198559, 205252, 235405, 241724, 256565, 286580, 302155, 312340, 329567, 345320, 359191, 376648, 397118, 410504, 470810, 483448, 513130, 573160, 604310, 624680, 659134, 718382, 794236, 941620, 992795, 1026260, 1208620, 1318268, 1389913, 1436764, 1588472, 1647835, 1795955, 1883240, 1985590, 2052520, 2417240, 2636536, 2779826, 2873528, 3295670, 3591910, 3971180, 4566857, 5559652, 6591340, 6949565, 7183820, 7942360, 9133714, 11119304, 13182680, 13899130, 14367640, 18267428, 22834285, 27798260, 31967999, 36534856, 45668570, 55596520, 63935998, 91337140, 127871996, 159839995, 182674280, 255743992, 319679990, 639359980, 1278719960]

約数ペア:

[(1, 1278719960), (2, 639359980), (4, 319679990), (5, 255743992), (7, 182674280), (8, 159839995), (10, 127871996), (14, 91337140), (20, 63935998), (23, 55596520), (28, 45668570), (35, 36534856), (40, 31967999), (46, 27798260), (56, 22834285), (70, 18267428), (89, 14367640), (92, 13899130), (97, 13182680), (115, 11119304), (140, 9133714), (161, 7942360), (178, 7183820), (184, 6949565), (194, 6591340), (230, 5559652), (280, 4566857), (322, 3971180), (356, 3591910), (388, 3295670), (445, 2873528), (460, 2779826), (485, 2636536), (529, 2417240), (623, 2052520), (644, 1985590), (679, 1883240), (712, 1795955), (776, 1647835), (805, 1588472), (890, 1436764), (920, 1389913), (970, 1318268), (1058, 1208620), (1246, 1026260), (1288, 992795), (1358, 941620), (1610, 794236), (1780, 718382), (1940, 659134), (2047, 624680), (2116, 604310), (2231, 573160), (2492, 513130), (2645, 483448), (2716, 470810), (3115, 410504), (3220, 397118), (3395, 376648), (3560, 359191), (3703, 345320), (3880, 329567), (4094, 312340), (4232, 302155), (4462, 286580), (4984, 256565), (5290, 241724), (5432, 235405), (6230, 205252), (6440, 198559), (6790, 188324), (7406, 172660), (8188, 156170), (8633, 148120), (8924, 143290), (10235, 124936), (10580, 120862), (11155, 114632), (12460, 102626), (13580, 94162), (14329, 89240), (14812, 86330), (15617, 81880), (16376, 78085), (17266, 74060), (17848, 71645), (18515, 69064), (20470, 62468), (21160, 60431), (22310, 57316), (24920, 51313), (27160, 47081), (28658, 44620), (29624, 43165), (31234, 40940), (34532, 37030)]