18897120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1193}}^1$

素因数の和:1225

約数の個数: 144

約数和(自身を含む): 70407792

約数和(自身を除く): 51510672

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1193, 1320, 1440, 1584, 1760, 1980, 2386, 2640, 3168, 3579, 3960, 4772, 5280, 5965, 7158, 7920, 9544, 10737, 11930, 13123, 14316, 15840, 17895, 19088, 21474, 23860, 26246, 28632, 35790, 38176, 39369, 42948, 47720, 52492, 53685, 57264, 65615, 71580, 78738, 85896, 95440, 104984, 107370, 114528, 118107, 131230, 143160, 157476, 171792, 190880, 196845, 209968, 214740, 236214, 262460, 286320, 314952, 343584, 393690, 419936, 429480, 472428, 524920, 572640, 590535, 629904, 787380, 858960, 944856, 1049840, 1181070, 1259808, 1574760, 1717920, 1889712, 2099680, 2362140, 3149520, 3779424, 4724280, 6299040, 9448560, 18897120]

約数ペア:

[(1, 18897120), (2, 9448560), (3, 6299040), (4, 4724280), (5, 3779424), (6, 3149520), (8, 2362140), (9, 2099680), (10, 1889712), (11, 1717920), (12, 1574760), (15, 1259808), (16, 1181070), (18, 1049840), (20, 944856), (22, 858960), (24, 787380), (30, 629904), (32, 590535), (33, 572640), (36, 524920), (40, 472428), (44, 429480), (45, 419936), (48, 393690), (55, 343584), (60, 314952), (66, 286320), (72, 262460), (80, 236214), (88, 214740), (90, 209968), (96, 196845), (99, 190880), (110, 171792), (120, 157476), (132, 143160), (144, 131230), (160, 118107), (165, 114528), (176, 107370), (180, 104984), (198, 95440), (220, 85896), (240, 78738), (264, 71580), (288, 65615), (330, 57264), (352, 53685), (360, 52492), (396, 47720), (440, 42948), (480, 39369), (495, 38176), (528, 35790), (660, 28632), (720, 26246), (792, 23860), (880, 21474), (990, 19088), (1056, 17895), (1193, 15840), (1320, 14316), (1440, 13123), (1584, 11930), (1760, 10737), (1980, 9544), (2386, 7920), (2640, 7158), (3168, 5965), (3579, 5280), (3960, 4772)]