64412225

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 82139832

約数和(自身を除く): 17727607

約数列:

[1, 5, 25, 53, 173, 265, 281, 865, 1325, 1405, 4325, 7025, 9169, 14893, 45845, 48613, 74465, 229225, 243065, 372325, 1215325, 2576489, 12882445, 64412225]

約数ペア:

[(1, 64412225), (5, 12882445), (25, 2576489), (53, 1215325), (173, 372325), (265, 243065), (281, 229225), (865, 74465), (1325, 48613), (1405, 45845), (4325, 14893), (7025, 9169)]