20703900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{9859}}^1$

素因数の和:9883

約数の個数: 72

約数和(自身を含む): 68467840

約数和(自身を除く): 47763940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 9859, 19718, 29577, 39436, 49295, 59154, 69013, 98590, 118308, 138026, 147885, 197180, 207039, 246475, 276052, 295770, 345065, 414078, 492950, 591540, 690130, 739425, 828156, 985900, 1035195, 1380260, 1478850, 1725325, 2070390, 2957700, 3450650, 4140780, 5175975, 6901300, 10351950, 20703900]

約数ペア:

[(1, 20703900), (2, 10351950), (3, 6901300), (4, 5175975), (5, 4140780), (6, 3450650), (7, 2957700), (10, 2070390), (12, 1725325), (14, 1478850), (15, 1380260), (20, 1035195), (21, 985900), (25, 828156), (28, 739425), (30, 690130), (35, 591540), (42, 492950), (50, 414078), (60, 345065), (70, 295770), (75, 276052), (84, 246475), (100, 207039), (105, 197180), (140, 147885), (150, 138026), (175, 118308), (210, 98590), (300, 69013), (350, 59154), (420, 49295), (525, 39436), (700, 29577), (1050, 19718), (2100, 9859)]