397249828

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{29761}}^1$

素因数の和:29883

約数の個数: 24

約数和(自身を含む): 720002304

約数和(自身を除く): 322752476

約数列:

[1, 2, 4, 47, 71, 94, 142, 188, 284, 3337, 6674, 13348, 29761, 59522, 119044, 1398767, 2113031, 2797534, 4226062, 5595068, 8452124, 99312457, 198624914, 397249828]

約数ペア:

[(1, 397249828), (2, 198624914), (4, 99312457), (47, 8452124), (71, 5595068), (94, 4226062), (142, 2797534), (188, 2113031), (284, 1398767), (3337, 119044), (6674, 59522), (13348, 29761)]