20603880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{43}}^1$

素因数の和:93

約数の個数: 192

約数和(自身を含む): 75366720

約数和(自身を除く): 54762840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 43, 44, 45, 55, 60, 66, 72, 86, 88, 90, 99, 110, 120, 121, 129, 132, 165, 172, 180, 198, 215, 220, 242, 258, 264, 330, 344, 360, 363, 387, 396, 430, 440, 473, 484, 495, 516, 605, 645, 660, 726, 774, 792, 860, 946, 968, 990, 1032, 1089, 1210, 1290, 1320, 1331, 1419, 1452, 1548, 1720, 1815, 1892, 1935, 1980, 2178, 2365, 2420, 2580, 2662, 2838, 2904, 3096, 3630, 3784, 3870, 3960, 3993, 4257, 4356, 4730, 4840, 5160, 5203, 5324, 5445, 5676, 6655, 7095, 7260, 7740, 7986, 8514, 8712, 9460, 10406, 10648, 10890, 11352, 11979, 13310, 14190, 14520, 15480, 15609, 15972, 17028, 18920, 19965, 20812, 21285, 21780, 23958, 26015, 26620, 28380, 31218, 31944, 34056, 39930, 41624, 42570, 43560, 46827, 47916, 52030, 53240, 56760, 57233, 59895, 62436, 78045, 79860, 85140, 93654, 95832, 104060, 114466, 119790, 124872, 156090, 159720, 170280, 171699, 187308, 208120, 228932, 234135, 239580, 286165, 312180, 343398, 374616, 457864, 468270, 479160, 515097, 572330, 624360, 686796, 858495, 936540, 1030194, 1144660, 1373592, 1716990, 1873080, 2060388, 2289320, 2575485, 3433980, 4120776, 5150970, 6867960, 10301940, 20603880]

約数ペア:

[(1, 20603880), (2, 10301940), (3, 6867960), (4, 5150970), (5, 4120776), (6, 3433980), (8, 2575485), (9, 2289320), (10, 2060388), (11, 1873080), (12, 1716990), (15, 1373592), (18, 1144660), (20, 1030194), (22, 936540), (24, 858495), (30, 686796), (33, 624360), (36, 572330), (40, 515097), (43, 479160), (44, 468270), (45, 457864), (55, 374616), (60, 343398), (66, 312180), (72, 286165), (86, 239580), (88, 234135), (90, 228932), (99, 208120), (110, 187308), (120, 171699), (121, 170280), (129, 159720), (132, 156090), (165, 124872), (172, 119790), (180, 114466), (198, 104060), (215, 95832), (220, 93654), (242, 85140), (258, 79860), (264, 78045), (330, 62436), (344, 59895), (360, 57233), (363, 56760), (387, 53240), (396, 52030), (430, 47916), (440, 46827), (473, 43560), (484, 42570), (495, 41624), (516, 39930), (605, 34056), (645, 31944), (660, 31218), (726, 28380), (774, 26620), (792, 26015), (860, 23958), (946, 21780), (968, 21285), (990, 20812), (1032, 19965), (1089, 18920), (1210, 17028), (1290, 15972), (1320, 15609), (1331, 15480), (1419, 14520), (1452, 14190), (1548, 13310), (1720, 11979), (1815, 11352), (1892, 10890), (1935, 10648), (1980, 10406), (2178, 9460), (2365, 8712), (2420, 8514), (2580, 7986), (2662, 7740), (2838, 7260), (2904, 7095), (3096, 6655), (3630, 5676), (3784, 5445), (3870, 5324), (3960, 5203), (3993, 5160), (4257, 4840), (4356, 4730)]