28018980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 192

約数和(自身を含む): 97977600

約数和(自身を除く): 69958620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 53, 54, 55, 60, 66, 89, 90, 99, 106, 108, 110, 132, 135, 159, 165, 178, 180, 198, 212, 220, 265, 267, 270, 297, 318, 330, 356, 396, 445, 477, 495, 530, 534, 540, 583, 594, 636, 660, 795, 801, 890, 954, 979, 990, 1060, 1068, 1166, 1188, 1335, 1431, 1485, 1590, 1602, 1749, 1780, 1908, 1958, 1980, 2332, 2385, 2403, 2670, 2862, 2915, 2937, 2970, 3180, 3204, 3498, 3916, 4005, 4717, 4770, 4806, 4895, 5247, 5340, 5724, 5830, 5874, 5940, 6996, 7155, 8010, 8745, 8811, 9434, 9540, 9612, 9790, 10494, 11660, 11748, 12015, 14151, 14310, 14685, 15741, 16020, 17490, 17622, 18868, 19580, 20988, 23585, 24030, 26235, 26433, 28302, 28620, 29370, 31482, 34980, 35244, 42453, 44055, 47170, 48060, 51887, 52470, 52866, 56604, 58740, 62964, 70755, 78705, 84906, 88110, 94340, 103774, 104940, 105732, 127359, 132165, 141510, 155661, 157410, 169812, 176220, 207548, 212265, 254718, 259435, 264330, 283020, 311322, 314820, 424530, 466983, 509436, 518870, 528660, 622644, 636795, 778305, 849060, 933966, 1037740, 1273590, 1400949, 1556610, 1867932, 2334915, 2547180, 2801898, 3113220, 4669830, 5603796, 7004745, 9339660, 14009490, 28018980]

約数ペア:

[(1, 28018980), (2, 14009490), (3, 9339660), (4, 7004745), (5, 5603796), (6, 4669830), (9, 3113220), (10, 2801898), (11, 2547180), (12, 2334915), (15, 1867932), (18, 1556610), (20, 1400949), (22, 1273590), (27, 1037740), (30, 933966), (33, 849060), (36, 778305), (44, 636795), (45, 622644), (53, 528660), (54, 518870), (55, 509436), (60, 466983), (66, 424530), (89, 314820), (90, 311322), (99, 283020), (106, 264330), (108, 259435), (110, 254718), (132, 212265), (135, 207548), (159, 176220), (165, 169812), (178, 157410), (180, 155661), (198, 141510), (212, 132165), (220, 127359), (265, 105732), (267, 104940), (270, 103774), (297, 94340), (318, 88110), (330, 84906), (356, 78705), (396, 70755), (445, 62964), (477, 58740), (495, 56604), (530, 52866), (534, 52470), (540, 51887), (583, 48060), (594, 47170), (636, 44055), (660, 42453), (795, 35244), (801, 34980), (890, 31482), (954, 29370), (979, 28620), (990, 28302), (1060, 26433), (1068, 26235), (1166, 24030), (1188, 23585), (1335, 20988), (1431, 19580), (1485, 18868), (1590, 17622), (1602, 17490), (1749, 16020), (1780, 15741), (1908, 14685), (1958, 14310), (1980, 14151), (2332, 12015), (2385, 11748), (2403, 11660), (2670, 10494), (2862, 9790), (2915, 9612), (2937, 9540), (2970, 9434), (3180, 8811), (3204, 8745), (3498, 8010), (3916, 7155), (4005, 6996), (4717, 5940), (4770, 5874), (4806, 5830), (4895, 5724), (5247, 5340)]