16524980

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1289}}^1$

素因数の和:1939

約数の個数: 24

約数和(自身を含む): 34783560

約数和(自身を除く): 18258580

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 1289, 2564, 2578, 3205, 5156, 6410, 6445, 12820, 12890, 25780, 826249, 1652498, 3304996, 4131245, 8262490, 16524980]

約数ペア:

[(1, 16524980), (2, 8262490), (4, 4131245), (5, 3304996), (10, 1652498), (20, 826249), (641, 25780), (1282, 12890), (1289, 12820), (2564, 6445), (2578, 6410), (3205, 5156)]