40557420

素因数分解:

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

素因数の和:1775

約数の個数: 72

約数和(自身を含む): 123985680

約数和(自身を除く): 83428260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1621, 1668, 2085, 2502, 2780, 3242, 4170, 4863, 5004, 6255, 6484, 8105, 8340, 9726, 12510, 14589, 16210, 19452, 24315, 25020, 29178, 32420, 48630, 58356, 72945, 97260, 145890, 225319, 291780, 450638, 675957, 901276, 1126595, 1351914, 2027871, 2253190, 2703828, 3379785, 4055742, 4506380, 6759570, 8111484, 10139355, 13519140, 20278710, 40557420]

約数ペア:

[(1, 40557420), (2, 20278710), (3, 13519140), (4, 10139355), (5, 8111484), (6, 6759570), (9, 4506380), (10, 4055742), (12, 3379785), (15, 2703828), (18, 2253190), (20, 2027871), (30, 1351914), (36, 1126595), (45, 901276), (60, 675957), (90, 450638), (139, 291780), (180, 225319), (278, 145890), (417, 97260), (556, 72945), (695, 58356), (834, 48630), (1251, 32420), (1390, 29178), (1621, 25020), (1668, 24315), (2085, 19452), (2502, 16210), (2780, 14589), (3242, 12510), (4170, 9726), (4863, 8340), (5004, 8105), (6255, 6484)]