81688560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{340369}}^1$

素因数の和:340385

約数の個数: 40

約数和(自身を含む): 253235280

約数和(自身を除く): 171546720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 340369, 680738, 1021107, 1361476, 1701845, 2042214, 2722952, 3403690, 4084428, 5105535, 5445904, 6807380, 8168856, 10211070, 13614760, 16337712, 20422140, 27229520, 40844280, 81688560]

約数ペア:

[(1, 81688560), (2, 40844280), (3, 27229520), (4, 20422140), (5, 16337712), (6, 13614760), (8, 10211070), (10, 8168856), (12, 6807380), (15, 5445904), (16, 5105535), (20, 4084428), (24, 3403690), (30, 2722952), (40, 2042214), (48, 1701845), (60, 1361476), (80, 1021107), (120, 680738), (240, 340369)]