206247780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{26647}}^1$

素因数の和:26705

約数の個数: 72

約数和(自身を含む): 640191552

約数和(自身を除く): 433943772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 26647, 53294, 79941, 106588, 133235, 159882, 239823, 266470, 319764, 399705, 479646, 532940, 799410, 959292, 1145821, 1199115, 1598820, 2291642, 2398230, 3437463, 4583284, 4796460, 5729105, 6874926, 10312389, 11458210, 13749852, 17187315, 20624778, 22916420, 34374630, 41249556, 51561945, 68749260, 103123890, 206247780]

約数ペア:

[(1, 206247780), (2, 103123890), (3, 68749260), (4, 51561945), (5, 41249556), (6, 34374630), (9, 22916420), (10, 20624778), (12, 17187315), (15, 13749852), (18, 11458210), (20, 10312389), (30, 6874926), (36, 5729105), (43, 4796460), (45, 4583284), (60, 3437463), (86, 2398230), (90, 2291642), (129, 1598820), (172, 1199115), (180, 1145821), (215, 959292), (258, 799410), (387, 532940), (430, 479646), (516, 399705), (645, 319764), (774, 266470), (860, 239823), (1290, 159882), (1548, 133235), (1935, 106588), (2580, 79941), (3870, 53294), (7740, 26647)]