2689640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3539}}^1$

素因数の和:3569

約数の個数: 32

約数和(自身を含む): 6372000

約数和(自身を除く): 3682360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 3539, 7078, 14156, 17695, 28312, 35390, 67241, 70780, 134482, 141560, 268964, 336205, 537928, 672410, 1344820, 2689640]

約数ペア:

[(1, 2689640), (2, 1344820), (4, 672410), (5, 537928), (8, 336205), (10, 268964), (19, 141560), (20, 134482), (38, 70780), (40, 67241), (76, 35390), (95, 28312), (152, 17695), (190, 14156), (380, 7078), (760, 3539)]