2605990

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{619}}^1$

素因数の和:1047

約数の個数: 16

約数和(自身を含む): 4709520

約数和(自身を除く): 2103530

約数列:

[1, 2, 5, 10, 421, 619, 842, 1238, 2105, 3095, 4210, 6190, 260599, 521198, 1302995, 2605990]

約数ペア:

[(1, 2605990), (2, 1302995), (5, 521198), (10, 260599), (421, 6190), (619, 4210), (842, 3095), (1238, 2105)]