20217504905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{599}}^1\times {\mathrm{1471}}^1$

素因数の和:2441

約数の個数: 32

約数和(自身を含む): 26262835200

約数和(自身を除く): 6045330295

約数列:

[1, 5, 13, 65, 353, 599, 1471, 1765, 2995, 4589, 7355, 7787, 19123, 22945, 38935, 95615, 211447, 519263, 881129, 1057235, 2596315, 2748811, 4405645, 6750419, 11454677, 13744055, 33752095, 57273385, 311038537, 1555192685, 4043500981, 20217504905]

約数ペア:

[(1, 20217504905), (5, 4043500981), (13, 1555192685), (65, 311038537), (353, 57273385), (599, 33752095), (1471, 13744055), (1765, 11454677), (2995, 6750419), (4589, 4405645), (7355, 2748811), (7787, 2596315), (19123, 1057235), (22945, 881129), (38935, 519263), (95615, 211447)]