51313520

素因数分解:

$2^4\times 5^1\times {\mathrm{641419}}^1$

素因数の和:641432

約数の個数: 20

約数和(自身を含む): 119304120

約数和(自身を除く): 67990600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 641419, 1282838, 2565676, 3207095, 5131352, 6414190, 10262704, 12828380, 25656760, 51313520]

約数ペア:

[(1, 51313520), (2, 25656760), (4, 12828380), (5, 10262704), (8, 6414190), (10, 5131352), (16, 3207095), (20, 2565676), (40, 1282838), (80, 641419)]