18871650

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2025

約数の個数: 96

約数和(自身を含む): 59460480

約数和(自身を除く): 40588830

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 90, 105, 126, 135, 150, 175, 189, 210, 225, 270, 315, 350, 378, 450, 525, 630, 675, 945, 1050, 1350, 1575, 1890, 1997, 3150, 3994, 4725, 5991, 9450, 9985, 11982, 13979, 17973, 19970, 27958, 29955, 35946, 41937, 49925, 53919, 59910, 69895, 83874, 89865, 99850, 107838, 125811, 139790, 149775, 179730, 209685, 251622, 269595, 299550, 349475, 377433, 419370, 449325, 539190, 629055, 698950, 754866, 898650, 1048425, 1258110, 1347975, 1887165, 2096850, 2695950, 3145275, 3774330, 6290550, 9435825, 18871650]

約数ペア:

[(1, 18871650), (2, 9435825), (3, 6290550), (5, 3774330), (6, 3145275), (7, 2695950), (9, 2096850), (10, 1887165), (14, 1347975), (15, 1258110), (18, 1048425), (21, 898650), (25, 754866), (27, 698950), (30, 629055), (35, 539190), (42, 449325), (45, 419370), (50, 377433), (54, 349475), (63, 299550), (70, 269595), (75, 251622), (90, 209685), (105, 179730), (126, 149775), (135, 139790), (150, 125811), (175, 107838), (189, 99850), (210, 89865), (225, 83874), (270, 69895), (315, 59910), (350, 53919), (378, 49925), (450, 41937), (525, 35946), (630, 29955), (675, 27958), (945, 19970), (1050, 17973), (1350, 13979), (1575, 11982), (1890, 9985), (1997, 9450), (3150, 5991), (3994, 4725)]