20039900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{8713}}^1$

素因数の和:8750

約数の個数: 36

約数和(自身を含む): 45382512

約数和(自身を除く): 25342612

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 8713, 17426, 34852, 43565, 87130, 174260, 200399, 217825, 400798, 435650, 801596, 871300, 1001995, 2003990, 4007980, 5009975, 10019950, 20039900]

約数ペア:

[(1, 20039900), (2, 10019950), (4, 5009975), (5, 4007980), (10, 2003990), (20, 1001995), (23, 871300), (25, 801596), (46, 435650), (50, 400798), (92, 217825), (100, 200399), (115, 174260), (230, 87130), (460, 43565), (575, 34852), (1150, 17426), (2300, 8713)]