18855000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{419}}^1$

素因数の和:451

約数の個数: 120

約数和(自身を含む): 63963900

約数和(自身を除く): 45108900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 419, 450, 500, 600, 625, 750, 838, 900, 1000, 1125, 1250, 1257, 1500, 1676, 1800, 1875, 2095, 2250, 2500, 2514, 3000, 3352, 3750, 3771, 4190, 4500, 5000, 5028, 5625, 6285, 7500, 7542, 8380, 9000, 10056, 10475, 11250, 12570, 15000, 15084, 16760, 18855, 20950, 22500, 25140, 30168, 31425, 37710, 41900, 45000, 50280, 52375, 62850, 75420, 83800, 94275, 104750, 125700, 150840, 157125, 188550, 209500, 251400, 261875, 314250, 377100, 419000, 471375, 523750, 628500, 754200, 785625, 942750, 1047500, 1257000, 1571250, 1885500, 2095000, 2356875, 3142500, 3771000, 4713750, 6285000, 9427500, 18855000]

約数ペア:

[(1, 18855000), (2, 9427500), (3, 6285000), (4, 4713750), (5, 3771000), (6, 3142500), (8, 2356875), (9, 2095000), (10, 1885500), (12, 1571250), (15, 1257000), (18, 1047500), (20, 942750), (24, 785625), (25, 754200), (30, 628500), (36, 523750), (40, 471375), (45, 419000), (50, 377100), (60, 314250), (72, 261875), (75, 251400), (90, 209500), (100, 188550), (120, 157125), (125, 150840), (150, 125700), (180, 104750), (200, 94275), (225, 83800), (250, 75420), (300, 62850), (360, 52375), (375, 50280), (419, 45000), (450, 41900), (500, 37710), (600, 31425), (625, 30168), (750, 25140), (838, 22500), (900, 20950), (1000, 18855), (1125, 16760), (1250, 15084), (1257, 15000), (1500, 12570), (1676, 11250), (1800, 10475), (1875, 10056), (2095, 9000), (2250, 8380), (2500, 7542), (2514, 7500), (3000, 6285), (3352, 5625), (3750, 5028), (3771, 5000), (4190, 4500)]