161985168

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:453

約数の個数: 120

約数和(自身を含む): 473231616

約数和(自身を除く): 311246448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 131, 144, 186, 248, 262, 277, 279, 372, 393, 496, 524, 554, 558, 744, 786, 831, 1048, 1108, 1116, 1179, 1488, 1572, 1662, 2096, 2216, 2232, 2358, 2493, 3144, 3324, 4061, 4432, 4464, 4716, 4986, 6288, 6648, 8122, 8587, 9432, 9972, 12183, 13296, 16244, 17174, 18864, 19944, 24366, 25761, 32488, 34348, 36287, 36549, 39888, 48732, 51522, 64976, 68696, 72574, 73098, 77283, 97464, 103044, 108861, 137392, 145148, 146196, 154566, 194928, 206088, 217722, 290296, 292392, 309132, 326583, 412176, 435444, 580592, 584784, 618264, 653166, 870888, 1124897, 1236528, 1306332, 1741776, 2249794, 2612664, 3374691, 4499588, 5225328, 6749382, 8999176, 10124073, 13498764, 17998352, 20248146, 26997528, 40496292, 53995056, 80992584, 161985168]

約数ペア:

[(1, 161985168), (2, 80992584), (3, 53995056), (4, 40496292), (6, 26997528), (8, 20248146), (9, 17998352), (12, 13498764), (16, 10124073), (18, 8999176), (24, 6749382), (31, 5225328), (36, 4499588), (48, 3374691), (62, 2612664), (72, 2249794), (93, 1741776), (124, 1306332), (131, 1236528), (144, 1124897), (186, 870888), (248, 653166), (262, 618264), (277, 584784), (279, 580592), (372, 435444), (393, 412176), (496, 326583), (524, 309132), (554, 292392), (558, 290296), (744, 217722), (786, 206088), (831, 194928), (1048, 154566), (1108, 146196), (1116, 145148), (1179, 137392), (1488, 108861), (1572, 103044), (1662, 97464), (2096, 77283), (2216, 73098), (2232, 72574), (2358, 68696), (2493, 64976), (3144, 51522), (3324, 48732), (4061, 39888), (4432, 36549), (4464, 36287), (4716, 34348), (4986, 32488), (6288, 25761), (6648, 24366), (8122, 19944), (8587, 18864), (9432, 17174), (9972, 16244), (12183, 13296)]