66507920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9341}}^1$

素因数の和:9443

約数の個数: 40

約数和(自身を含む): 156385080

約数和(自身を除く): 89877160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 9341, 18682, 37364, 46705, 74728, 93410, 149456, 186820, 373640, 747280, 831349, 1662698, 3325396, 4156745, 6650792, 8313490, 13301584, 16626980, 33253960, 66507920]

約数ペア:

[(1, 66507920), (2, 33253960), (4, 16626980), (5, 13301584), (8, 8313490), (10, 6650792), (16, 4156745), (20, 3325396), (40, 1662698), (80, 831349), (89, 747280), (178, 373640), (356, 186820), (445, 149456), (712, 93410), (890, 74728), (1424, 46705), (1780, 37364), (3560, 18682), (7120, 9341)]