254071280

素因数分解:

$2^4\times 5^1\times {\mathrm{3175891}}^1$

素因数の和:3175904

約数の個数: 20

約数和(自身を含む): 590715912

約数和(自身を除く): 336644632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3175891, 6351782, 12703564, 15879455, 25407128, 31758910, 50814256, 63517820, 127035640, 254071280]

約数ペア:

[(1, 254071280), (2, 127035640), (4, 63517820), (5, 50814256), (8, 31758910), (10, 25407128), (16, 15879455), (20, 12703564), (40, 6351782), (80, 3175891)]