311923720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{1201}}^1$

素因数の和:1406

約数の個数: 64

約数和(自身を含む): 723507840

約数和(自身を除く): 411584120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 302, 344, 430, 604, 755, 860, 1201, 1208, 1510, 1720, 2402, 3020, 4804, 6005, 6040, 6493, 9608, 12010, 12986, 24020, 25972, 32465, 48040, 51643, 51944, 64930, 103286, 129860, 181351, 206572, 258215, 259720, 362702, 413144, 516430, 725404, 906755, 1032860, 1450808, 1813510, 2065720, 3627020, 7254040, 7798093, 15596186, 31192372, 38990465, 62384744, 77980930, 155961860, 311923720]

約数ペア:

[(1, 311923720), (2, 155961860), (4, 77980930), (5, 62384744), (8, 38990465), (10, 31192372), (20, 15596186), (40, 7798093), (43, 7254040), (86, 3627020), (151, 2065720), (172, 1813510), (215, 1450808), (302, 1032860), (344, 906755), (430, 725404), (604, 516430), (755, 413144), (860, 362702), (1201, 259720), (1208, 258215), (1510, 206572), (1720, 181351), (2402, 129860), (3020, 103286), (4804, 64930), (6005, 51944), (6040, 51643), (6493, 48040), (9608, 32465), (12010, 25972), (12986, 24020)]