20762560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:91

約数の個数: 224

約数和(自身を含む): 65544192

約数和(自身を除く): 44781632

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 31, 32, 35, 40, 46, 52, 56, 62, 64, 65, 70, 80, 91, 92, 104, 112, 115, 124, 130, 140, 155, 160, 161, 182, 184, 208, 217, 224, 230, 248, 260, 280, 299, 310, 320, 322, 364, 368, 403, 416, 434, 448, 455, 460, 496, 520, 560, 598, 620, 644, 713, 728, 736, 805, 806, 832, 868, 910, 920, 992, 1040, 1085, 1120, 1196, 1240, 1288, 1426, 1456, 1472, 1495, 1610, 1612, 1736, 1820, 1840, 1984, 2015, 2080, 2093, 2170, 2240, 2392, 2480, 2576, 2821, 2852, 2912, 2990, 3220, 3224, 3472, 3565, 3640, 3680, 4030, 4160, 4186, 4340, 4784, 4960, 4991, 5152, 5642, 5704, 5824, 5980, 6440, 6448, 6944, 7130, 7280, 7360, 8060, 8372, 8680, 9269, 9568, 9920, 9982, 10304, 10465, 11284, 11408, 11960, 12880, 12896, 13888, 14105, 14260, 14560, 16120, 16744, 17360, 18538, 19136, 19964, 20930, 22568, 22816, 23920, 24955, 25760, 25792, 28210, 28520, 29120, 32240, 33488, 34720, 37076, 39928, 41860, 45136, 45632, 46345, 47840, 49910, 51520, 56420, 57040, 64480, 64883, 66976, 69440, 74152, 79856, 83720, 90272, 92690, 95680, 99820, 112840, 114080, 128960, 129766, 133952, 148304, 159712, 167440, 180544, 185380, 199640, 225680, 228160, 259532, 296608, 319424, 324415, 334880, 370760, 399280, 451360, 519064, 593216, 648830, 669760, 741520, 798560, 902720, 1038128, 1297660, 1483040, 1597120, 2076256, 2595320, 2966080, 4152512, 5190640, 10381280, 20762560]

約数ペア:

[(1, 20762560), (2, 10381280), (4, 5190640), (5, 4152512), (7, 2966080), (8, 2595320), (10, 2076256), (13, 1597120), (14, 1483040), (16, 1297660), (20, 1038128), (23, 902720), (26, 798560), (28, 741520), (31, 669760), (32, 648830), (35, 593216), (40, 519064), (46, 451360), (52, 399280), (56, 370760), (62, 334880), (64, 324415), (65, 319424), (70, 296608), (80, 259532), (91, 228160), (92, 225680), (104, 199640), (112, 185380), (115, 180544), (124, 167440), (130, 159712), (140, 148304), (155, 133952), (160, 129766), (161, 128960), (182, 114080), (184, 112840), (208, 99820), (217, 95680), (224, 92690), (230, 90272), (248, 83720), (260, 79856), (280, 74152), (299, 69440), (310, 66976), (320, 64883), (322, 64480), (364, 57040), (368, 56420), (403, 51520), (416, 49910), (434, 47840), (448, 46345), (455, 45632), (460, 45136), (496, 41860), (520, 39928), (560, 37076), (598, 34720), (620, 33488), (644, 32240), (713, 29120), (728, 28520), (736, 28210), (805, 25792), (806, 25760), (832, 24955), (868, 23920), (910, 22816), (920, 22568), (992, 20930), (1040, 19964), (1085, 19136), (1120, 18538), (1196, 17360), (1240, 16744), (1288, 16120), (1426, 14560), (1456, 14260), (1472, 14105), (1495, 13888), (1610, 12896), (1612, 12880), (1736, 11960), (1820, 11408), (1840, 11284), (1984, 10465), (2015, 10304), (2080, 9982), (2093, 9920), (2170, 9568), (2240, 9269), (2392, 8680), (2480, 8372), (2576, 8060), (2821, 7360), (2852, 7280), (2912, 7130), (2990, 6944), (3220, 6448), (3224, 6440), (3472, 5980), (3565, 5824), (3640, 5704), (3680, 5642), (4030, 5152), (4160, 4991), (4186, 4960), (4340, 4784)]