858487940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{167021}}^1$

素因数の和:167287

約数の個数: 24

約数和(自身を含む): 1809850392

約数和(自身を除く): 951362452

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 167021, 334042, 668084, 835105, 1670210, 3340420, 42924397, 85848794, 171697588, 214621985, 429243970, 858487940]

約数ペア:

[(1, 858487940), (2, 429243970), (4, 214621985), (5, 171697588), (10, 85848794), (20, 42924397), (257, 3340420), (514, 1670210), (1028, 835105), (1285, 668084), (2570, 334042), (5140, 167021)]