289280492740

素因数分解:

$2^2\times 5^1\times {\mathrm{128983}}^1\times {\mathrm{112139}}^1$

素因数の和:241131

約数の個数: 24

約数和(自身を含む): 607499161920

約数和(自身を除く): 318218669180

約数列:

[1, 2, 4, 5, 10, 20, 112139, 128983, 224278, 257966, 448556, 515932, 560695, 644915, 1121390, 1289830, 2242780, 2579660, 14464024637, 28928049274, 57856098548, 72320123185, 144640246370, 289280492740]

約数ペア:

[(1, 289280492740), (2, 144640246370), (4, 72320123185), (5, 57856098548), (10, 28928049274), (20, 14464024637), (112139, 2579660), (128983, 2242780), (224278, 1289830), (257966, 1121390), (448556, 644915), (515932, 560695)]