20859568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1163}}^1$

素因数の和:1249

約数の個数: 40

約数和(自身を含む): 43300800

約数和(自身を除く): 22441232

約数列:

[1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 236, 304, 472, 944, 1121, 1163, 2242, 2326, 4484, 4652, 8968, 9304, 17936, 18608, 22097, 44194, 68617, 88388, 137234, 176776, 274468, 353552, 548936, 1097872, 1303723, 2607446, 5214892, 10429784, 20859568]

約数ペア:

[(1, 20859568), (2, 10429784), (4, 5214892), (8, 2607446), (16, 1303723), (19, 1097872), (38, 548936), (59, 353552), (76, 274468), (118, 176776), (152, 137234), (236, 88388), (304, 68617), (472, 44194), (944, 22097), (1121, 18608), (1163, 17936), (2242, 9304), (2326, 8968), (4484, 4652)]