648049168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3115621}}^1$

素因数の和:3115642

約数の個数: 20

約数和(自身を含む): 1352179948

約数和(自身を除く): 704130780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3115621, 6231242, 12462484, 24924968, 40503073, 49849936, 81006146, 162012292, 324024584, 648049168]

約数ペア:

[(1, 648049168), (2, 324024584), (4, 162012292), (8, 81006146), (13, 49849936), (16, 40503073), (26, 24924968), (52, 12462484), (104, 6231242), (208, 3115621)]