20199965045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1657}}^1\times {\mathrm{9871}}^1$

素因数の和:11565

約数の個数: 32

約数和(自身を含む): 27497863680

約数和(自身を除く): 7297898635

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 1657, 8285, 9871, 21541, 31483, 49355, 107705, 128323, 157415, 187549, 409279, 641615, 937745, 2046395, 2438137, 12190685, 16356247, 81781235, 212631211, 310768693, 1063156055, 1553843465, 4039993009, 20199965045]

約数ペア:

[(1, 20199965045), (5, 4039993009), (13, 1553843465), (19, 1063156055), (65, 310768693), (95, 212631211), (247, 81781235), (1235, 16356247), (1657, 12190685), (8285, 2438137), (9871, 2046395), (21541, 937745), (31483, 641615), (49355, 409279), (107705, 187549), (128323, 157415)]