638572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{631}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 1274112

約数和(自身を除く): 635540

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 631, 1012, 1262, 2524, 6941, 13882, 14513, 27764, 29026, 58052, 159643, 319286, 638572]

約数ペア:

[(1, 638572), (2, 319286), (4, 159643), (11, 58052), (22, 29026), (23, 27764), (44, 14513), (46, 13882), (92, 6941), (253, 2524), (506, 1262), (631, 1012)]