4087280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2689}}^1$

素因数の和:2721

約数の個数: 40

約数和(自身を含む): 10006800

約数和(自身を除く): 5919520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2689, 5378, 10756, 13445, 21512, 26890, 43024, 51091, 53780, 102182, 107560, 204364, 215120, 255455, 408728, 510910, 817456, 1021820, 2043640, 4087280]

約数ペア:

[(1, 4087280), (2, 2043640), (4, 1021820), (5, 817456), (8, 510910), (10, 408728), (16, 255455), (19, 215120), (20, 204364), (38, 107560), (40, 102182), (76, 53780), (80, 51091), (95, 43024), (152, 26890), (190, 21512), (304, 13445), (380, 10756), (760, 5378), (1520, 2689)]