128406908

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{64591}}^1$

素因数の和:64673

約数の個数: 24

約数和(自身を含む): 260434944

約数和(自身を除く): 132028036

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 64591, 129182, 258364, 452137, 904274, 1808548, 4585961, 9171922, 18343844, 32101727, 64203454, 128406908]

約数ペア:

[(1, 128406908), (2, 64203454), (4, 32101727), (7, 18343844), (14, 9171922), (28, 4585961), (71, 1808548), (142, 904274), (284, 452137), (497, 258364), (994, 129182), (1988, 64591)]