12015920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 80

約数和(自身を含む): 32736000

約数和(自身を除く): 20720080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 499, 560, 602, 688, 860, 998, 1204, 1505, 1720, 1996, 2408, 2495, 3010, 3440, 3493, 3992, 4816, 4990, 6020, 6986, 7984, 9980, 12040, 13972, 17465, 19960, 21457, 24080, 27944, 34930, 39920, 42914, 55888, 69860, 85828, 107285, 139720, 150199, 171656, 214570, 279440, 300398, 343312, 429140, 600796, 750995, 858280, 1201592, 1501990, 1716560, 2403184, 3003980, 6007960, 12015920]

約数ペア:

[(1, 12015920), (2, 6007960), (4, 3003980), (5, 2403184), (7, 1716560), (8, 1501990), (10, 1201592), (14, 858280), (16, 750995), (20, 600796), (28, 429140), (35, 343312), (40, 300398), (43, 279440), (56, 214570), (70, 171656), (80, 150199), (86, 139720), (112, 107285), (140, 85828), (172, 69860), (215, 55888), (280, 42914), (301, 39920), (344, 34930), (430, 27944), (499, 24080), (560, 21457), (602, 19960), (688, 17465), (860, 13972), (998, 12040), (1204, 9980), (1505, 7984), (1720, 6986), (1996, 6020), (2408, 4990), (2495, 4816), (3010, 3992), (3440, 3493)]