2080551890

素因数分解:

$2^1\times 5^1\times {\mathrm{20929}}^1\times {\mathrm{9941}}^1$

素因数の和:30877

約数の個数: 16

約数和(自身を含む): 3745549080

約数和(自身を除く): 1664997190

約数列:

[1, 2, 5, 10, 9941, 19882, 20929, 41858, 49705, 99410, 104645, 209290, 208055189, 416110378, 1040275945, 2080551890]

約数ペア:

[(1, 2080551890), (2, 1040275945), (5, 416110378), (10, 208055189), (9941, 209290), (19882, 104645), (20929, 99410), (41858, 49705)]