259043408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1245401}}^1$

素因数の和:1245422

約数の個数: 20

約数和(自身を含む): 540504468

約数和(自身を除く): 281461060

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1245401, 2490802, 4981604, 9963208, 16190213, 19926416, 32380426, 64760852, 129521704, 259043408]

約数ペア:

[(1, 259043408), (2, 129521704), (4, 64760852), (8, 32380426), (13, 19926416), (16, 16190213), (26, 9963208), (52, 4981604), (104, 2490802), (208, 1245401)]