198989000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 192

約数和(自身を含む): 563397120

約数和(自身を除く): 364408120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 49, 50, 56, 62, 70, 98, 100, 124, 125, 131, 140, 155, 175, 196, 200, 217, 245, 248, 250, 262, 280, 310, 350, 392, 434, 490, 500, 524, 620, 655, 700, 775, 868, 875, 917, 980, 1000, 1048, 1085, 1225, 1240, 1310, 1400, 1519, 1550, 1736, 1750, 1834, 1960, 2170, 2450, 2620, 3038, 3100, 3275, 3500, 3668, 3875, 4061, 4340, 4585, 4900, 5240, 5425, 6076, 6125, 6200, 6419, 6550, 7000, 7336, 7595, 7750, 8122, 8680, 9170, 9800, 10850, 12152, 12250, 12838, 13100, 15190, 15500, 16244, 16375, 18340, 20305, 21700, 22925, 24500, 25676, 26200, 27125, 28427, 30380, 31000, 32095, 32488, 32750, 36680, 37975, 40610, 43400, 45850, 49000, 51352, 54250, 56854, 60760, 64190, 65500, 75950, 81220, 91700, 101525, 108500, 113708, 114625, 128380, 131000, 142135, 151900, 160475, 162440, 183400, 189875, 198989, 203050, 217000, 227416, 229250, 256760, 284270, 303800, 320950, 379750, 397978, 406100, 458500, 507625, 568540, 641900, 710675, 759500, 795956, 802375, 812200, 917000, 994945, 1015250, 1137080, 1283800, 1421350, 1519000, 1591912, 1604750, 1989890, 2030500, 2842700, 3209500, 3553375, 3979780, 4061000, 4974725, 5685400, 6419000, 7106750, 7959560, 9949450, 14213500, 19898900, 24873625, 28427000, 39797800, 49747250, 99494500, 198989000]

約数ペア:

[(1, 198989000), (2, 99494500), (4, 49747250), (5, 39797800), (7, 28427000), (8, 24873625), (10, 19898900), (14, 14213500), (20, 9949450), (25, 7959560), (28, 7106750), (31, 6419000), (35, 5685400), (40, 4974725), (49, 4061000), (50, 3979780), (56, 3553375), (62, 3209500), (70, 2842700), (98, 2030500), (100, 1989890), (124, 1604750), (125, 1591912), (131, 1519000), (140, 1421350), (155, 1283800), (175, 1137080), (196, 1015250), (200, 994945), (217, 917000), (245, 812200), (248, 802375), (250, 795956), (262, 759500), (280, 710675), (310, 641900), (350, 568540), (392, 507625), (434, 458500), (490, 406100), (500, 397978), (524, 379750), (620, 320950), (655, 303800), (700, 284270), (775, 256760), (868, 229250), (875, 227416), (917, 217000), (980, 203050), (1000, 198989), (1048, 189875), (1085, 183400), (1225, 162440), (1240, 160475), (1310, 151900), (1400, 142135), (1519, 131000), (1550, 128380), (1736, 114625), (1750, 113708), (1834, 108500), (1960, 101525), (2170, 91700), (2450, 81220), (2620, 75950), (3038, 65500), (3100, 64190), (3275, 60760), (3500, 56854), (3668, 54250), (3875, 51352), (4061, 49000), (4340, 45850), (4585, 43400), (4900, 40610), (5240, 37975), (5425, 36680), (6076, 32750), (6125, 32488), (6200, 32095), (6419, 31000), (6550, 30380), (7000, 28427), (7336, 27125), (7595, 26200), (7750, 25676), (8122, 24500), (8680, 22925), (9170, 21700), (9800, 20305), (10850, 18340), (12152, 16375), (12250, 16244), (12838, 15500), (13100, 15190)]