20318144

素因数分解:

$2^6\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 168

約数和(自身を含む): 55595520

約数和(自身を除く): 35277376

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 31, 32, 38, 44, 49, 56, 62, 64, 76, 77, 88, 98, 112, 124, 133, 152, 154, 176, 196, 209, 217, 224, 248, 266, 304, 308, 341, 352, 392, 418, 434, 448, 496, 532, 539, 589, 608, 616, 682, 704, 784, 836, 868, 931, 992, 1064, 1078, 1178, 1216, 1232, 1364, 1463, 1519, 1568, 1672, 1736, 1862, 1984, 2128, 2156, 2356, 2387, 2464, 2728, 2926, 3038, 3136, 3344, 3472, 3724, 4123, 4256, 4312, 4712, 4774, 4928, 5456, 5852, 6076, 6479, 6688, 6944, 7448, 8246, 8512, 8624, 9424, 9548, 10241, 10912, 11704, 12152, 12958, 13376, 13888, 14896, 16492, 16709, 17248, 18848, 19096, 20482, 21824, 23408, 24304, 25916, 28861, 29792, 32984, 33418, 34496, 37696, 38192, 40964, 45353, 46816, 48608, 51832, 57722, 59584, 65968, 66836, 76384, 81928, 90706, 93632, 97216, 103664, 115444, 131936, 133672, 152768, 163856, 181412, 207328, 230888, 263872, 267344, 317471, 327712, 362824, 414656, 461776, 534688, 634942, 655424, 725648, 923552, 1069376, 1269884, 1451296, 1847104, 2539768, 2902592, 5079536, 10159072, 20318144]

約数ペア:

[(1, 20318144), (2, 10159072), (4, 5079536), (7, 2902592), (8, 2539768), (11, 1847104), (14, 1451296), (16, 1269884), (19, 1069376), (22, 923552), (28, 725648), (31, 655424), (32, 634942), (38, 534688), (44, 461776), (49, 414656), (56, 362824), (62, 327712), (64, 317471), (76, 267344), (77, 263872), (88, 230888), (98, 207328), (112, 181412), (124, 163856), (133, 152768), (152, 133672), (154, 131936), (176, 115444), (196, 103664), (209, 97216), (217, 93632), (224, 90706), (248, 81928), (266, 76384), (304, 66836), (308, 65968), (341, 59584), (352, 57722), (392, 51832), (418, 48608), (434, 46816), (448, 45353), (496, 40964), (532, 38192), (539, 37696), (589, 34496), (608, 33418), (616, 32984), (682, 29792), (704, 28861), (784, 25916), (836, 24304), (868, 23408), (931, 21824), (992, 20482), (1064, 19096), (1078, 18848), (1178, 17248), (1216, 16709), (1232, 16492), (1364, 14896), (1463, 13888), (1519, 13376), (1568, 12958), (1672, 12152), (1736, 11704), (1862, 10912), (1984, 10241), (2128, 9548), (2156, 9424), (2356, 8624), (2387, 8512), (2464, 8246), (2728, 7448), (2926, 6944), (3038, 6688), (3136, 6479), (3344, 6076), (3472, 5852), (3724, 5456), (4123, 4928), (4256, 4774), (4312, 4712)]