638403952

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{110527}}^1$

素因数の和:110573

約数の個数: 30

約数和(自身を含む): 1305446208

約数和(自身を除く): 667042256

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 361, 722, 1444, 2888, 5776, 110527, 221054, 442108, 884216, 1768432, 2100013, 4200026, 8400052, 16800104, 33600208, 39900247, 79800494, 159600988, 319201976, 638403952]

約数ペア:

[(1, 638403952), (2, 319201976), (4, 159600988), (8, 79800494), (16, 39900247), (19, 33600208), (38, 16800104), (76, 8400052), (152, 4200026), (304, 2100013), (361, 1768432), (722, 884216), (1444, 442108), (2888, 221054), (5776, 110527)]