31405500

素因数分解:

$2^2\times 3^2\times 5^3\times 7^1\times {\mathrm{997}}^1$

素因数の和:1029

約数の個数: 144

約数和(自身を含む): 113340864

約数和(自身を除く): 81935364

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 125, 126, 140, 150, 175, 180, 210, 225, 250, 252, 300, 315, 350, 375, 420, 450, 500, 525, 630, 700, 750, 875, 900, 997, 1050, 1125, 1260, 1500, 1575, 1750, 1994, 2100, 2250, 2625, 2991, 3150, 3500, 3988, 4500, 4985, 5250, 5982, 6300, 6979, 7875, 8973, 9970, 10500, 11964, 13958, 14955, 15750, 17946, 19940, 20937, 24925, 27916, 29910, 31500, 34895, 35892, 41874, 44865, 49850, 59820, 62811, 69790, 74775, 83748, 89730, 99700, 104685, 124625, 125622, 139580, 149550, 174475, 179460, 209370, 224325, 249250, 251244, 299100, 314055, 348950, 373875, 418740, 448650, 498500, 523425, 628110, 697900, 747750, 872375, 897300, 1046850, 1121625, 1256220, 1495500, 1570275, 1744750, 2093700, 2243250, 2617125, 3140550, 3489500, 4486500, 5234250, 6281100, 7851375, 10468500, 15702750, 31405500]

約数ペア:

[(1, 31405500), (2, 15702750), (3, 10468500), (4, 7851375), (5, 6281100), (6, 5234250), (7, 4486500), (9, 3489500), (10, 3140550), (12, 2617125), (14, 2243250), (15, 2093700), (18, 1744750), (20, 1570275), (21, 1495500), (25, 1256220), (28, 1121625), (30, 1046850), (35, 897300), (36, 872375), (42, 747750), (45, 697900), (50, 628110), (60, 523425), (63, 498500), (70, 448650), (75, 418740), (84, 373875), (90, 348950), (100, 314055), (105, 299100), (125, 251244), (126, 249250), (140, 224325), (150, 209370), (175, 179460), (180, 174475), (210, 149550), (225, 139580), (250, 125622), (252, 124625), (300, 104685), (315, 99700), (350, 89730), (375, 83748), (420, 74775), (450, 69790), (500, 62811), (525, 59820), (630, 49850), (700, 44865), (750, 41874), (875, 35892), (900, 34895), (997, 31500), (1050, 29910), (1125, 27916), (1260, 24925), (1500, 20937), (1575, 19940), (1750, 17946), (1994, 15750), (2100, 14955), (2250, 13958), (2625, 11964), (2991, 10500), (3150, 9970), (3500, 8973), (3988, 7875), (4500, 6979), (4985, 6300), (5250, 5982)]