4991120

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{701}}^1$

素因数の和:803

約数の個数: 40

約数和(自身を含む): 11751480

約数和(自身を除く): 6760360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 701, 712, 890, 1402, 1424, 1780, 2804, 3505, 3560, 5608, 7010, 7120, 11216, 14020, 28040, 56080, 62389, 124778, 249556, 311945, 499112, 623890, 998224, 1247780, 2495560, 4991120]

約数ペア:

[(1, 4991120), (2, 2495560), (4, 1247780), (5, 998224), (8, 623890), (10, 499112), (16, 311945), (20, 249556), (40, 124778), (80, 62389), (89, 56080), (178, 28040), (356, 14020), (445, 11216), (701, 7120), (712, 7010), (890, 5608), (1402, 3560), (1424, 3505), (1780, 2804)]