20286650

素因数分解:

$2^1\times 5^2\times {\mathrm{631}}^1\times {\mathrm{643}}^1$

素因数の和:1286

約数の個数: 24

約数和(自身を含む): 37851744

約数和(自身を除く): 17565094

約数列:

[1, 2, 5, 10, 25, 50, 631, 643, 1262, 1286, 3155, 3215, 6310, 6430, 15775, 16075, 31550, 32150, 405733, 811466, 2028665, 4057330, 10143325, 20286650]

約数ペア:

[(1, 20286650), (2, 10143325), (5, 4057330), (10, 2028665), (25, 811466), (50, 405733), (631, 32150), (643, 31550), (1262, 16075), (1286, 15775), (3155, 6430), (3215, 6310)]