20759900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:699

約数の個数: 72

約数和(自身を含む): 52663296

約数和(自身を除く): 31903396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 631, 658, 700, 940, 1175, 1262, 1316, 1645, 2350, 2524, 3155, 3290, 4417, 4700, 6310, 6580, 8225, 8834, 12620, 15775, 16450, 17668, 22085, 29657, 31550, 32900, 44170, 59314, 63100, 88340, 110425, 118628, 148285, 207599, 220850, 296570, 415198, 441700, 593140, 741425, 830396, 1037995, 1482850, 2075990, 2965700, 4151980, 5189975, 10379950, 20759900]

約数ペア:

[(1, 20759900), (2, 10379950), (4, 5189975), (5, 4151980), (7, 2965700), (10, 2075990), (14, 1482850), (20, 1037995), (25, 830396), (28, 741425), (35, 593140), (47, 441700), (50, 415198), (70, 296570), (94, 220850), (100, 207599), (140, 148285), (175, 118628), (188, 110425), (235, 88340), (329, 63100), (350, 59314), (470, 44170), (631, 32900), (658, 31550), (700, 29657), (940, 22085), (1175, 17668), (1262, 16450), (1316, 15775), (1645, 12620), (2350, 8834), (2524, 8225), (3155, 6580), (3290, 6310), (4417, 4700)]