19770210

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1979}}^1$

素因数の和:2032

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 34402590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1979, 1998, 3330, 3958, 4995, 5937, 9895, 9990, 11874, 17811, 19790, 29685, 35622, 53433, 59370, 73223, 89055, 106866, 146446, 178110, 219669, 267165, 366115, 439338, 534330, 659007, 732230, 1098345, 1318014, 1977021, 2196690, 3295035, 3954042, 6590070, 9885105, 19770210]

約数ペア:

[(1, 19770210), (2, 9885105), (3, 6590070), (5, 3954042), (6, 3295035), (9, 2196690), (10, 1977021), (15, 1318014), (18, 1098345), (27, 732230), (30, 659007), (37, 534330), (45, 439338), (54, 366115), (74, 267165), (90, 219669), (111, 178110), (135, 146446), (185, 106866), (222, 89055), (270, 73223), (333, 59370), (370, 53433), (555, 35622), (666, 29685), (999, 19790), (1110, 17811), (1665, 11874), (1979, 9990), (1998, 9895), (3330, 5937), (3958, 4995)]