18520920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1559}}^1$

素因数の和:1590

約数の個数: 128

約数和(自身を含む): 67392000

約数和(自身を除く): 48871080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 216, 220, 264, 270, 297, 330, 360, 396, 440, 495, 540, 594, 660, 792, 990, 1080, 1188, 1320, 1485, 1559, 1980, 2376, 2970, 3118, 3960, 4677, 5940, 6236, 7795, 9354, 11880, 12472, 14031, 15590, 17149, 18708, 23385, 28062, 31180, 34298, 37416, 42093, 46770, 51447, 56124, 62360, 68596, 70155, 84186, 85745, 93540, 102894, 112248, 137192, 140310, 154341, 168372, 171490, 187080, 205788, 210465, 257235, 280620, 308682, 336744, 342980, 411576, 420930, 463023, 514470, 561240, 617364, 685960, 771705, 841860, 926046, 1028940, 1234728, 1543410, 1683720, 1852092, 2057880, 2315115, 3086820, 3704184, 4630230, 6173640, 9260460, 18520920]

約数ペア:

[(1, 18520920), (2, 9260460), (3, 6173640), (4, 4630230), (5, 3704184), (6, 3086820), (8, 2315115), (9, 2057880), (10, 1852092), (11, 1683720), (12, 1543410), (15, 1234728), (18, 1028940), (20, 926046), (22, 841860), (24, 771705), (27, 685960), (30, 617364), (33, 561240), (36, 514470), (40, 463023), (44, 420930), (45, 411576), (54, 342980), (55, 336744), (60, 308682), (66, 280620), (72, 257235), (88, 210465), (90, 205788), (99, 187080), (108, 171490), (110, 168372), (120, 154341), (132, 140310), (135, 137192), (165, 112248), (180, 102894), (198, 93540), (216, 85745), (220, 84186), (264, 70155), (270, 68596), (297, 62360), (330, 56124), (360, 51447), (396, 46770), (440, 42093), (495, 37416), (540, 34298), (594, 31180), (660, 28062), (792, 23385), (990, 18708), (1080, 17149), (1188, 15590), (1320, 14031), (1485, 12472), (1559, 11880), (1980, 9354), (2376, 7795), (2970, 6236), (3118, 5940), (3960, 4677)]