1820205070

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{708251}}^1$

素因数の和:708515

約数の個数: 16

約数和(自身を含む): 3289122288

約数和(自身を除く): 1468917218

約数列:

[1, 2, 5, 10, 257, 514, 1285, 2570, 708251, 1416502, 3541255, 7082510, 182020507, 364041014, 910102535, 1820205070]

約数ペア:

[(1, 1820205070), (2, 910102535), (5, 364041014), (10, 182020507), (257, 7082510), (514, 3541255), (1285, 1416502), (2570, 708251)]