20207984

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{617}}^1$

素因数の和:737

約数の個数: 40

約数和(自身を含む): 41381280

約数和(自身を除く): 21173296

約数列:

[1, 2, 4, 8, 16, 23, 46, 89, 92, 178, 184, 356, 368, 617, 712, 1234, 1424, 2047, 2468, 4094, 4936, 8188, 9872, 14191, 16376, 28382, 32752, 54913, 56764, 109826, 113528, 219652, 227056, 439304, 878608, 1262999, 2525998, 5051996, 10103992, 20207984]

約数ペア:

[(1, 20207984), (2, 10103992), (4, 5051996), (8, 2525998), (16, 1262999), (23, 878608), (46, 439304), (89, 227056), (92, 219652), (178, 113528), (184, 109826), (356, 56764), (368, 54913), (617, 32752), (712, 28382), (1234, 16376), (1424, 14191), (2047, 9872), (2468, 8188), (4094, 4936)]