55731980

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{6619}}^1$

素因数の和:7049

約数の個数: 24

約数和(自身を含む): 117332880

約数和(自身を除く): 61600900

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 6619, 8420, 13238, 26476, 33095, 66190, 132380, 2786599, 5573198, 11146396, 13932995, 27865990, 55731980]

約数ペア:

[(1, 55731980), (2, 27865990), (4, 13932995), (5, 11146396), (10, 5573198), (20, 2786599), (421, 132380), (842, 66190), (1684, 33095), (2105, 26476), (4210, 13238), (6619, 8420)]