12720208

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{13033}}^1$

素因数の和:13102

約数の個数: 20

約数和(自身を含む): 25051348

約数和(自身を除く): 12331140

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 13033, 26066, 52132, 104264, 208528, 795013, 1590026, 3180052, 6360104, 12720208]

約数ペア:

[(1, 12720208), (2, 6360104), (4, 3180052), (8, 1590026), (16, 795013), (61, 208528), (122, 104264), (244, 52132), (488, 26066), (976, 13033)]