20278710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1621}}^1$

素因数の和:1773

約数の個数: 48

約数和(自身を含む): 53136720

約数和(自身を除く): 32858010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139, 278, 417, 695, 834, 1251, 1390, 1621, 2085, 2502, 3242, 4170, 4863, 6255, 8105, 9726, 12510, 14589, 16210, 24315, 29178, 48630, 72945, 145890, 225319, 450638, 675957, 1126595, 1351914, 2027871, 2253190, 3379785, 4055742, 6759570, 10139355, 20278710]

約数ペア:

[(1, 20278710), (2, 10139355), (3, 6759570), (5, 4055742), (6, 3379785), (9, 2253190), (10, 2027871), (15, 1351914), (18, 1126595), (30, 675957), (45, 450638), (90, 225319), (139, 145890), (278, 72945), (417, 48630), (695, 29178), (834, 24315), (1251, 16210), (1390, 14589), (1621, 12510), (2085, 9726), (2502, 8105), (3242, 6255), (4170, 4863)]