255438

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:648

約数の個数: 24

約数和(自身を含む): 578448

約数和(自身を除く): 323010

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 617, 1234, 1851, 3702, 5553, 11106, 14191, 28382, 42573, 85146, 127719, 255438]

約数ペア:

[(1, 255438), (2, 127719), (3, 85146), (6, 42573), (9, 28382), (18, 14191), (23, 11106), (46, 5553), (69, 3702), (138, 1851), (207, 1234), (414, 617)]