20605750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 22525130

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 59, 110, 118, 125, 127, 250, 254, 275, 295, 550, 590, 635, 649, 1270, 1298, 1375, 1397, 1475, 2750, 2794, 2950, 3175, 3245, 6350, 6490, 6985, 7375, 7493, 13970, 14750, 14986, 15875, 16225, 31750, 32450, 34925, 37465, 69850, 74930, 81125, 82423, 162250, 164846, 174625, 187325, 349250, 374650, 412115, 824230, 936625, 1873250, 2060575, 4121150, 10302875, 20605750]

約数ペア:

[(1, 20605750), (2, 10302875), (5, 4121150), (10, 2060575), (11, 1873250), (22, 936625), (25, 824230), (50, 412115), (55, 374650), (59, 349250), (110, 187325), (118, 174625), (125, 164846), (127, 162250), (250, 82423), (254, 81125), (275, 74930), (295, 69850), (550, 37465), (590, 34925), (635, 32450), (649, 31750), (1270, 16225), (1298, 15875), (1375, 14986), (1397, 14750), (1475, 13970), (2750, 7493), (2794, 7375), (2950, 6985), (3175, 6490), (3245, 6350)]