201020816

素因数分解:

$2^4\times {\mathrm{1987}}^1\times {\mathrm{6323}}^1$

素因数の和:8318

約数の個数: 20

約数和(自身を含む): 389735472

約数和(自身を除く): 188714656

約数列:

[1, 2, 4, 8, 16, 1987, 3974, 6323, 7948, 12646, 15896, 25292, 31792, 50584, 101168, 12563801, 25127602, 50255204, 100510408, 201020816]

約数ペア:

[(1, 201020816), (2, 100510408), (4, 50255204), (8, 25127602), (16, 12563801), (1987, 101168), (3974, 50584), (6323, 31792), (7948, 25292), (12646, 15896)]