398006860

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{73433}}^1$

素因数の和:73713

約数の個数: 24

約数和(自身を含む): 838910016

約数和(自身を除く): 440903156

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 73433, 146866, 293732, 367165, 734330, 1468660, 19900343, 39800686, 79601372, 99501715, 199003430, 398006860]

約数ペア:

[(1, 398006860), (2, 199003430), (4, 99501715), (5, 79601372), (10, 39800686), (20, 19900343), (271, 1468660), (542, 734330), (1084, 367165), (1355, 293732), (2710, 146866), (5420, 73433)]