20937000

素因数分解:

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

素因数の和:1028

約数の個数: 128

約数和(自身を含む): 74730240

約数和(自身を除く): 53793240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 280, 300, 350, 375, 420, 500, 525, 600, 700, 750, 840, 875, 997, 1000, 1050, 1400, 1500, 1750, 1994, 2100, 2625, 2991, 3000, 3500, 3988, 4200, 4985, 5250, 5982, 6979, 7000, 7976, 9970, 10500, 11964, 13958, 14955, 19940, 20937, 21000, 23928, 24925, 27916, 29910, 34895, 39880, 41874, 49850, 55832, 59820, 69790, 74775, 83748, 99700, 104685, 119640, 124625, 139580, 149550, 167496, 174475, 199400, 209370, 249250, 279160, 299100, 348950, 373875, 418740, 498500, 523425, 598200, 697900, 747750, 837480, 872375, 997000, 1046850, 1395800, 1495500, 1744750, 2093700, 2617125, 2991000, 3489500, 4187400, 5234250, 6979000, 10468500, 20937000]

約数ペア:

[(1, 20937000), (2, 10468500), (3, 6979000), (4, 5234250), (5, 4187400), (6, 3489500), (7, 2991000), (8, 2617125), (10, 2093700), (12, 1744750), (14, 1495500), (15, 1395800), (20, 1046850), (21, 997000), (24, 872375), (25, 837480), (28, 747750), (30, 697900), (35, 598200), (40, 523425), (42, 498500), (50, 418740), (56, 373875), (60, 348950), (70, 299100), (75, 279160), (84, 249250), (100, 209370), (105, 199400), (120, 174475), (125, 167496), (140, 149550), (150, 139580), (168, 124625), (175, 119640), (200, 104685), (210, 99700), (250, 83748), (280, 74775), (300, 69790), (350, 59820), (375, 55832), (420, 49850), (500, 41874), (525, 39880), (600, 34895), (700, 29910), (750, 27916), (840, 24925), (875, 23928), (997, 21000), (1000, 20937), (1050, 19940), (1400, 14955), (1500, 13958), (1750, 11964), (1994, 10500), (2100, 9970), (2625, 7976), (2991, 7000), (3000, 6979), (3500, 5982), (3988, 5250), (4200, 4985)]