65428321

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 82298880

約数和(自身を除く): 16870559

約数列:

[1, 7, 29, 31, 37, 203, 217, 259, 281, 899, 1073, 1147, 1967, 6293, 7511, 8029, 8149, 8711, 10397, 33263, 57043, 60977, 72779, 232841, 252619, 301513, 322307, 1768333, 2110591, 2256149, 9346903, 65428321]

約数ペア:

[(1, 65428321), (7, 9346903), (29, 2256149), (31, 2110591), (37, 1768333), (203, 322307), (217, 301513), (259, 252619), (281, 232841), (899, 72779), (1073, 60977), (1147, 57043), (1967, 33263), (6293, 10397), (7511, 8711), (8029, 8149)]