78161860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79757}}^1$

素因数の和:79780

約数の個数: 36

約数和(自身を含む): 190940652

約数和(自身を除く): 112778792

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 79757, 159514, 319028, 398785, 558299, 797570, 1116598, 1595140, 2233196, 2791495, 3908093, 5582990, 7816186, 11165980, 15632372, 19540465, 39080930, 78161860]

約数ペア:

[(1, 78161860), (2, 39080930), (4, 19540465), (5, 15632372), (7, 11165980), (10, 7816186), (14, 5582990), (20, 3908093), (28, 2791495), (35, 2233196), (49, 1595140), (70, 1116598), (98, 797570), (140, 558299), (196, 398785), (245, 319028), (490, 159514), (980, 79757)]