13207280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8689}}^1$

素因数の和:8721

約数の個数: 40

約数和(自身を含む): 32326800

約数和(自身を除く): 19119520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 8689, 17378, 34756, 43445, 69512, 86890, 139024, 165091, 173780, 330182, 347560, 660364, 695120, 825455, 1320728, 1650910, 2641456, 3301820, 6603640, 13207280]

約数ペア:

[(1, 13207280), (2, 6603640), (4, 3301820), (5, 2641456), (8, 1650910), (10, 1320728), (16, 825455), (19, 695120), (20, 660364), (38, 347560), (40, 330182), (76, 173780), (80, 165091), (95, 139024), (152, 86890), (190, 69512), (304, 43445), (380, 34756), (760, 17378), (1520, 8689)]