20665730

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4729}}^1$

素因数の和:4778

約数の個数: 32

約数和(自身を含む): 40867200

約数和(自身を除く): 20201470

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4729, 9458, 23645, 47290, 89851, 108767, 179702, 217534, 449255, 543835, 898510, 1087670, 2066573, 4133146, 10332865, 20665730]

約数ペア:

[(1, 20665730), (2, 10332865), (5, 4133146), (10, 2066573), (19, 1087670), (23, 898510), (38, 543835), (46, 449255), (95, 217534), (115, 179702), (190, 108767), (230, 89851), (437, 47290), (874, 23645), (2185, 9458), (4370, 4729)]