3490840

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{443}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 7912080

約数和(自身を除く): 4421240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 443, 788, 886, 985, 1576, 1772, 1970, 2215, 3544, 3940, 4430, 7880, 8860, 17720, 87271, 174542, 349084, 436355, 698168, 872710, 1745420, 3490840]

約数ペア:

[(1, 3490840), (2, 1745420), (4, 872710), (5, 698168), (8, 436355), (10, 349084), (20, 174542), (40, 87271), (197, 17720), (394, 8860), (443, 7880), (788, 4430), (886, 3940), (985, 3544), (1576, 2215), (1772, 1970)]