2018997920

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{293459}}^1$

素因数の和:293517

約数の個数: 48

約数和(自身を含む): 4880826720

約数和(自身を除く): 2861828800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 293459, 586918, 1173836, 1467295, 2347672, 2934590, 4695344, 5869180, 9390688, 11738360, 12618737, 23476720, 25237474, 46953440, 50474948, 63093685, 100949896, 126187370, 201899792, 252374740, 403799584, 504749480, 1009498960, 2018997920]

約数ペア:

[(1, 2018997920), (2, 1009498960), (4, 504749480), (5, 403799584), (8, 252374740), (10, 201899792), (16, 126187370), (20, 100949896), (32, 63093685), (40, 50474948), (43, 46953440), (80, 25237474), (86, 23476720), (160, 12618737), (172, 11738360), (215, 9390688), (344, 5869180), (430, 4695344), (688, 2934590), (860, 2347672), (1376, 1467295), (1720, 1173836), (3440, 586918), (6880, 293459)]