31171920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:229

約数の個数: 160

約数和(自身を含む): 106159872

約数和(自身を除く): 74987952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 97, 103, 104, 120, 130, 156, 194, 195, 206, 208, 240, 260, 291, 309, 312, 388, 390, 412, 485, 515, 520, 582, 618, 624, 776, 780, 824, 970, 1030, 1040, 1164, 1236, 1261, 1339, 1455, 1545, 1552, 1560, 1648, 1940, 2060, 2328, 2472, 2522, 2678, 2910, 3090, 3120, 3783, 3880, 4017, 4120, 4656, 4944, 5044, 5356, 5820, 6180, 6305, 6695, 7566, 7760, 8034, 8240, 9991, 10088, 10712, 11640, 12360, 12610, 13390, 15132, 16068, 18915, 19982, 20085, 20176, 21424, 23280, 24720, 25220, 26780, 29973, 30264, 32136, 37830, 39964, 40170, 49955, 50440, 53560, 59946, 60528, 64272, 75660, 79928, 80340, 99910, 100880, 107120, 119892, 129883, 149865, 151320, 159856, 160680, 199820, 239784, 259766, 299730, 302640, 321360, 389649, 399640, 479568, 519532, 599460, 649415, 779298, 799280, 1039064, 1198920, 1298830, 1558596, 1948245, 2078128, 2397840, 2597660, 3117192, 3896490, 5195320, 6234384, 7792980, 10390640, 15585960, 31171920]

約数ペア:

[(1, 31171920), (2, 15585960), (3, 10390640), (4, 7792980), (5, 6234384), (6, 5195320), (8, 3896490), (10, 3117192), (12, 2597660), (13, 2397840), (15, 2078128), (16, 1948245), (20, 1558596), (24, 1298830), (26, 1198920), (30, 1039064), (39, 799280), (40, 779298), (48, 649415), (52, 599460), (60, 519532), (65, 479568), (78, 399640), (80, 389649), (97, 321360), (103, 302640), (104, 299730), (120, 259766), (130, 239784), (156, 199820), (194, 160680), (195, 159856), (206, 151320), (208, 149865), (240, 129883), (260, 119892), (291, 107120), (309, 100880), (312, 99910), (388, 80340), (390, 79928), (412, 75660), (485, 64272), (515, 60528), (520, 59946), (582, 53560), (618, 50440), (624, 49955), (776, 40170), (780, 39964), (824, 37830), (970, 32136), (1030, 30264), (1040, 29973), (1164, 26780), (1236, 25220), (1261, 24720), (1339, 23280), (1455, 21424), (1545, 20176), (1552, 20085), (1560, 19982), (1648, 18915), (1940, 16068), (2060, 15132), (2328, 13390), (2472, 12610), (2522, 12360), (2678, 11640), (2910, 10712), (3090, 10088), (3120, 9991), (3783, 8240), (3880, 8034), (4017, 7760), (4120, 7566), (4656, 6695), (4944, 6305), (5044, 6180), (5356, 5820)]