6821980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2819}}^1$

素因数の和:2850

約数の個数: 36

約数和(自身を含む): 15752520

約数和(自身を除く): 8930540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 2819, 5638, 11276, 14095, 28190, 31009, 56380, 62018, 124036, 155045, 310090, 341099, 620180, 682198, 1364396, 1705495, 3410990, 6821980]

約数ペア:

[(1, 6821980), (2, 3410990), (4, 1705495), (5, 1364396), (10, 682198), (11, 620180), (20, 341099), (22, 310090), (44, 155045), (55, 124036), (110, 62018), (121, 56380), (220, 31009), (242, 28190), (484, 14095), (605, 11276), (1210, 5638), (2420, 2819)]