26861980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15091}}^1$

素因数の和:15189

約数の個数: 24

約数和(自身を含む): 57047760

約数和(自身を除く): 30185780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 15091, 30182, 60364, 75455, 150910, 301820, 1343099, 2686198, 5372396, 6715495, 13430990, 26861980]

約数ペア:

[(1, 26861980), (2, 13430990), (4, 6715495), (5, 5372396), (10, 2686198), (20, 1343099), (89, 301820), (178, 150910), (356, 75455), (445, 60364), (890, 30182), (1780, 15091)]