19567280

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{883}}^1$

素因数の和:1173

約数の個数: 40

約数和(自身を含む): 45709872

約数和(自身を除く): 26142592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 883, 1108, 1385, 1766, 2216, 2770, 3532, 4415, 4432, 5540, 7064, 8830, 11080, 14128, 17660, 22160, 35320, 70640, 244591, 489182, 978364, 1222955, 1956728, 2445910, 3913456, 4891820, 9783640, 19567280]

約数ペア:

[(1, 19567280), (2, 9783640), (4, 4891820), (5, 3913456), (8, 2445910), (10, 1956728), (16, 1222955), (20, 978364), (40, 489182), (80, 244591), (277, 70640), (554, 35320), (883, 22160), (1108, 17660), (1385, 14128), (1766, 11080), (2216, 8830), (2770, 7064), (3532, 5540), (4415, 4432)]