397238416

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{30689}}^1$

素因数の和:31506

約数の個数: 20

約数和(自身を含む): 770625900

約数和(自身を除く): 373387484

約数列:

[1, 2, 4, 8, 16, 809, 1618, 3236, 6472, 12944, 30689, 61378, 122756, 245512, 491024, 24827401, 49654802, 99309604, 198619208, 397238416]

約数ペア:

[(1, 397238416), (2, 198619208), (4, 99309604), (8, 49654802), (16, 24827401), (809, 491024), (1618, 245512), (3236, 122756), (6472, 61378), (12944, 30689)]