20739560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22543}}^1$

素因数の和:22577

約数の個数: 32

約数和(自身を含む): 48695040

約数和(自身を除く): 27955480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22543, 45086, 90172, 112715, 180344, 225430, 450860, 518489, 901720, 1036978, 2073956, 2592445, 4147912, 5184890, 10369780, 20739560]

約数ペア:

[(1, 20739560), (2, 10369780), (4, 5184890), (5, 4147912), (8, 2592445), (10, 2073956), (20, 1036978), (23, 901720), (40, 518489), (46, 450860), (92, 225430), (115, 180344), (184, 112715), (230, 90172), (460, 45086), (920, 22543)]