12199960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 28939680

約数和(自身を除く): 16739720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 173, 205, 215, 328, 344, 346, 410, 430, 692, 820, 860, 865, 1384, 1640, 1720, 1730, 1763, 3460, 3526, 6920, 7052, 7093, 7439, 8815, 14104, 14186, 14878, 17630, 28372, 29756, 35260, 35465, 37195, 56744, 59512, 70520, 70930, 74390, 141860, 148780, 283720, 297560, 304999, 609998, 1219996, 1524995, 2439992, 3049990, 6099980, 12199960]

約数ペア:

[(1, 12199960), (2, 6099980), (4, 3049990), (5, 2439992), (8, 1524995), (10, 1219996), (20, 609998), (40, 304999), (41, 297560), (43, 283720), (82, 148780), (86, 141860), (164, 74390), (172, 70930), (173, 70520), (205, 59512), (215, 56744), (328, 37195), (344, 35465), (346, 35260), (410, 29756), (430, 28372), (692, 17630), (820, 14878), (860, 14186), (865, 14104), (1384, 8815), (1640, 7439), (1720, 7093), (1730, 7052), (1763, 6920), (3460, 3526)]