26278820

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3121}}^1$

素因数の和:3551

約数の個数: 24

約数和(自身を含む): 55334328

約数和(自身を除く): 29055508

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 3121, 4210, 6242, 8420, 12484, 15605, 31210, 62420, 1313941, 2627882, 5255764, 6569705, 13139410, 26278820]

約数ペア:

[(1, 26278820), (2, 13139410), (4, 6569705), (5, 5255764), (10, 2627882), (20, 1313941), (421, 62420), (842, 31210), (1684, 15605), (2105, 12484), (3121, 8420), (4210, 6242)]