20927720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47563}}^1$

素因数の和:47585

約数の個数: 32

約数和(自身を含む): 51369120

約数和(自身を除く): 30441400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47563, 95126, 190252, 237815, 380504, 475630, 523193, 951260, 1046386, 1902520, 2092772, 2615965, 4185544, 5231930, 10463860, 20927720]

約数ペア:

[(1, 20927720), (2, 10463860), (4, 5231930), (5, 4185544), (8, 2615965), (10, 2092772), (11, 1902520), (20, 1046386), (22, 951260), (40, 523193), (44, 475630), (55, 380504), (88, 237815), (110, 190252), (220, 95126), (440, 47563)]