648972584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{6240121}}^1$

素因数の和:6240140

約数の個数: 16

約数和(自身を含む): 1310425620

約数和(自身を除く): 661453036

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 6240121, 12480242, 24960484, 49920968, 81121573, 162243146, 324486292, 648972584]

約数ペア:

[(1, 648972584), (2, 324486292), (4, 162243146), (8, 81121573), (13, 49920968), (26, 24960484), (52, 12480242), (104, 6240121)]