64387840

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 178809120

約数和(自身を除く): 114421280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 170, 176, 187, 220, 256, 269, 272, 320, 340, 352, 374, 440, 538, 544, 640, 680, 704, 748, 880, 935, 1076, 1088, 1280, 1345, 1360, 1408, 1496, 1760, 1870, 2152, 2176, 2690, 2720, 2816, 2959, 2992, 3520, 3740, 4304, 4352, 4573, 5380, 5440, 5918, 5984, 7040, 7480, 8608, 9146, 10760, 10880, 11836, 11968, 14080, 14795, 14960, 17216, 18292, 21520, 21760, 22865, 23672, 23936, 29590, 29920, 34432, 36584, 43040, 45730, 47344, 47872, 50303, 59180, 59840, 68864, 73168, 86080, 91460, 94688, 100606, 118360, 119680, 146336, 172160, 182920, 189376, 201212, 236720, 239360, 251515, 292672, 344320, 365840, 378752, 402424, 473440, 503030, 585344, 731680, 757504, 804848, 946880, 1006060, 1170688, 1463360, 1609696, 1893760, 2012120, 2926720, 3219392, 3787520, 4024240, 5853440, 6438784, 8048480, 12877568, 16096960, 32193920, 64387840]

約数ペア:

[(1, 64387840), (2, 32193920), (4, 16096960), (5, 12877568), (8, 8048480), (10, 6438784), (11, 5853440), (16, 4024240), (17, 3787520), (20, 3219392), (22, 2926720), (32, 2012120), (34, 1893760), (40, 1609696), (44, 1463360), (55, 1170688), (64, 1006060), (68, 946880), (80, 804848), (85, 757504), (88, 731680), (110, 585344), (128, 503030), (136, 473440), (160, 402424), (170, 378752), (176, 365840), (187, 344320), (220, 292672), (256, 251515), (269, 239360), (272, 236720), (320, 201212), (340, 189376), (352, 182920), (374, 172160), (440, 146336), (538, 119680), (544, 118360), (640, 100606), (680, 94688), (704, 91460), (748, 86080), (880, 73168), (935, 68864), (1076, 59840), (1088, 59180), (1280, 50303), (1345, 47872), (1360, 47344), (1408, 45730), (1496, 43040), (1760, 36584), (1870, 34432), (2152, 29920), (2176, 29590), (2690, 23936), (2720, 23672), (2816, 22865), (2959, 21760), (2992, 21520), (3520, 18292), (3740, 17216), (4304, 14960), (4352, 14795), (4573, 14080), (5380, 11968), (5440, 11836), (5918, 10880), (5984, 10760), (7040, 9146), (7480, 8608)]