80438200

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4519}}^1$

素因数の和:4624

約数の個数: 48

約数和(自身を含む): 189162000

約数和(自身を除く): 108723800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 178, 200, 356, 445, 712, 890, 1780, 2225, 3560, 4450, 4519, 8900, 9038, 17800, 18076, 22595, 36152, 45190, 90380, 112975, 180760, 225950, 402191, 451900, 804382, 903800, 1608764, 2010955, 3217528, 4021910, 8043820, 10054775, 16087640, 20109550, 40219100, 80438200]

約数ペア:

[(1, 80438200), (2, 40219100), (4, 20109550), (5, 16087640), (8, 10054775), (10, 8043820), (20, 4021910), (25, 3217528), (40, 2010955), (50, 1608764), (89, 903800), (100, 804382), (178, 451900), (200, 402191), (356, 225950), (445, 180760), (712, 112975), (890, 90380), (1780, 45190), (2225, 36152), (3560, 22595), (4450, 18076), (4519, 17800), (8900, 9038)]