278081440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:375

約数の個数: 192

約数和(自身を含む): 823011840

約数和(自身を除く): 544930400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 71, 80, 91, 104, 112, 130, 140, 142, 160, 182, 208, 224, 260, 269, 280, 284, 355, 364, 416, 455, 497, 520, 538, 560, 568, 710, 728, 910, 923, 994, 1040, 1076, 1120, 1136, 1345, 1420, 1456, 1820, 1846, 1883, 1988, 2080, 2152, 2272, 2485, 2690, 2840, 2912, 3497, 3640, 3692, 3766, 3976, 4304, 4615, 4970, 5380, 5680, 6461, 6994, 7280, 7384, 7532, 7952, 8608, 9230, 9415, 9940, 10760, 11360, 12922, 13988, 14560, 14768, 15064, 15904, 17485, 18460, 18830, 19099, 19880, 21520, 24479, 25844, 27976, 29536, 30128, 32305, 34970, 36920, 37660, 38198, 39760, 43040, 48958, 51688, 55952, 60256, 64610, 69940, 73840, 75320, 76396, 79520, 95495, 97916, 103376, 111904, 122395, 129220, 133693, 139880, 147680, 150640, 152792, 190990, 195832, 206752, 244790, 248287, 258440, 267386, 279760, 301280, 305584, 381980, 391664, 489580, 496574, 516880, 534772, 559520, 611168, 668465, 763960, 783328, 979160, 993148, 1033760, 1069544, 1241435, 1336930, 1527920, 1738009, 1958320, 1986296, 2139088, 2482870, 2673860, 3055840, 3476018, 3916640, 3972592, 4278176, 4965740, 5347720, 6952036, 7945184, 8690045, 9931480, 10695440, 13904072, 17380090, 19862960, 21390880, 27808144, 34760180, 39725920, 55616288, 69520360, 139040720, 278081440]

約数ペア:

[(1, 278081440), (2, 139040720), (4, 69520360), (5, 55616288), (7, 39725920), (8, 34760180), (10, 27808144), (13, 21390880), (14, 19862960), (16, 17380090), (20, 13904072), (26, 10695440), (28, 9931480), (32, 8690045), (35, 7945184), (40, 6952036), (52, 5347720), (56, 4965740), (65, 4278176), (70, 3972592), (71, 3916640), (80, 3476018), (91, 3055840), (104, 2673860), (112, 2482870), (130, 2139088), (140, 1986296), (142, 1958320), (160, 1738009), (182, 1527920), (208, 1336930), (224, 1241435), (260, 1069544), (269, 1033760), (280, 993148), (284, 979160), (355, 783328), (364, 763960), (416, 668465), (455, 611168), (497, 559520), (520, 534772), (538, 516880), (560, 496574), (568, 489580), (710, 391664), (728, 381980), (910, 305584), (923, 301280), (994, 279760), (1040, 267386), (1076, 258440), (1120, 248287), (1136, 244790), (1345, 206752), (1420, 195832), (1456, 190990), (1820, 152792), (1846, 150640), (1883, 147680), (1988, 139880), (2080, 133693), (2152, 129220), (2272, 122395), (2485, 111904), (2690, 103376), (2840, 97916), (2912, 95495), (3497, 79520), (3640, 76396), (3692, 75320), (3766, 73840), (3976, 69940), (4304, 64610), (4615, 60256), (4970, 55952), (5380, 51688), (5680, 48958), (6461, 43040), (6994, 39760), (7280, 38198), (7384, 37660), (7532, 36920), (7952, 34970), (8608, 32305), (9230, 30128), (9415, 29536), (9940, 27976), (10760, 25844), (11360, 24479), (12922, 21520), (13988, 19880), (14560, 19099), (14768, 18830), (15064, 18460), (15904, 17485)]