27984320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:99

約数の個数: 168

約数和(自身を含む): 84746592

約数和(自身を除く): 56762272

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 130, 140, 155, 160, 182, 208, 217, 224, 248, 260, 280, 310, 320, 364, 403, 416, 434, 448, 455, 496, 520, 560, 620, 728, 806, 832, 868, 910, 961, 992, 1040, 1085, 1120, 1240, 1456, 1612, 1736, 1820, 1922, 1984, 2015, 2080, 2170, 2240, 2480, 2821, 2912, 3224, 3472, 3640, 3844, 4030, 4160, 4340, 4805, 4960, 5642, 5824, 6448, 6727, 6944, 7280, 7688, 8060, 8680, 9610, 9920, 11284, 12493, 12896, 13454, 13888, 14105, 14560, 15376, 16120, 17360, 19220, 22568, 24986, 25792, 26908, 28210, 29120, 30752, 32240, 33635, 34720, 38440, 45136, 49972, 53816, 56420, 61504, 62465, 64480, 67270, 69440, 76880, 87451, 90272, 99944, 107632, 112840, 124930, 128960, 134540, 153760, 174902, 180544, 199888, 215264, 225680, 249860, 269080, 307520, 349804, 399776, 430528, 437255, 451360, 499720, 538160, 699608, 799552, 874510, 902720, 999440, 1076320, 1399216, 1749020, 1998880, 2152640, 2798432, 3498040, 3997760, 5596864, 6996080, 13992160, 27984320]

約数ペア:

[(1, 27984320), (2, 13992160), (4, 6996080), (5, 5596864), (7, 3997760), (8, 3498040), (10, 2798432), (13, 2152640), (14, 1998880), (16, 1749020), (20, 1399216), (26, 1076320), (28, 999440), (31, 902720), (32, 874510), (35, 799552), (40, 699608), (52, 538160), (56, 499720), (62, 451360), (64, 437255), (65, 430528), (70, 399776), (80, 349804), (91, 307520), (104, 269080), (112, 249860), (124, 225680), (130, 215264), (140, 199888), (155, 180544), (160, 174902), (182, 153760), (208, 134540), (217, 128960), (224, 124930), (248, 112840), (260, 107632), (280, 99944), (310, 90272), (320, 87451), (364, 76880), (403, 69440), (416, 67270), (434, 64480), (448, 62465), (455, 61504), (496, 56420), (520, 53816), (560, 49972), (620, 45136), (728, 38440), (806, 34720), (832, 33635), (868, 32240), (910, 30752), (961, 29120), (992, 28210), (1040, 26908), (1085, 25792), (1120, 24986), (1240, 22568), (1456, 19220), (1612, 17360), (1736, 16120), (1820, 15376), (1922, 14560), (1984, 14105), (2015, 13888), (2080, 13454), (2170, 12896), (2240, 12493), (2480, 11284), (2821, 9920), (2912, 9610), (3224, 8680), (3472, 8060), (3640, 7688), (3844, 7280), (4030, 6944), (4160, 6727), (4340, 6448), (4805, 5824), (4960, 5642)]