20124880

素因数分解:

$2^4\times 5^1\times {\mathrm{251561}}^1$

素因数の和:251574

約数の個数: 20

約数和(自身を含む): 46790532

約数和(自身を除く): 26665652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251561, 503122, 1006244, 1257805, 2012488, 2515610, 4024976, 5031220, 10062440, 20124880]

約数ペア:

[(1, 20124880), (2, 10062440), (4, 5031220), (5, 4024976), (8, 2515610), (10, 2012488), (16, 1257805), (20, 1006244), (40, 503122), (80, 251561)]