219953212

素因数分解:

$2^2\times {\mathrm{263}}^1\times {\mathrm{419}}^1\times {\mathrm{499}}^1$

素因数の和:1185

約数の個数: 24

約数和(自身を含む): 388080000

約数和(自身を除く): 168126788

約数列:

[1, 2, 4, 263, 419, 499, 526, 838, 998, 1052, 1676, 1996, 110197, 131237, 209081, 220394, 262474, 418162, 440788, 524948, 836324, 54988303, 109976606, 219953212]

約数ペア:

[(1, 219953212), (2, 109976606), (4, 54988303), (263, 836324), (419, 524948), (499, 440788), (526, 418162), (838, 262474), (998, 220394), (1052, 209081), (1676, 131237), (1996, 110197)]