639252

素因数分解:

$2^2\times 3^4\times {\mathrm{1973}}^1$

素因数の和:1989

約数の個数: 30

約数和(自身を含む): 1671978

約数和(自身を除く): 1032726

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 1973, 3946, 5919, 7892, 11838, 17757, 23676, 35514, 53271, 71028, 106542, 159813, 213084, 319626, 639252]

約数ペア:

[(1, 639252), (2, 319626), (3, 213084), (4, 159813), (6, 106542), (9, 71028), (12, 53271), (18, 35514), (27, 23676), (36, 17757), (54, 11838), (81, 7892), (108, 5919), (162, 3946), (324, 1973)]