1278256

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:229

約数の個数: 40

約数和(自身を含む): 2883744

約数和(自身を除く): 1605488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 113, 202, 226, 404, 452, 707, 791, 808, 904, 1414, 1582, 1616, 1808, 2828, 3164, 5656, 6328, 11312, 11413, 12656, 22826, 45652, 79891, 91304, 159782, 182608, 319564, 639128, 1278256]

約数ペア:

[(1, 1278256), (2, 639128), (4, 319564), (7, 182608), (8, 159782), (14, 91304), (16, 79891), (28, 45652), (56, 22826), (101, 12656), (112, 11413), (113, 11312), (202, 6328), (226, 5656), (404, 3164), (452, 2828), (707, 1808), (791, 1616), (808, 1582), (904, 1414)]