20731900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{4231}}^1$

素因数の和:4259

約数の個数: 54

約数和(自身を含む): 52345608

約数和(自身を除く): 31613708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4231, 4900, 8462, 16924, 21155, 29617, 42310, 59234, 84620, 105775, 118468, 148085, 207319, 211550, 296170, 414638, 423100, 592340, 740425, 829276, 1036595, 1480850, 2073190, 2961700, 4146380, 5182975, 10365950, 20731900]

約数ペア:

[(1, 20731900), (2, 10365950), (4, 5182975), (5, 4146380), (7, 2961700), (10, 2073190), (14, 1480850), (20, 1036595), (25, 829276), (28, 740425), (35, 592340), (49, 423100), (50, 414638), (70, 296170), (98, 211550), (100, 207319), (140, 148085), (175, 118468), (196, 105775), (245, 84620), (350, 59234), (490, 42310), (700, 29617), (980, 21155), (1225, 16924), (2450, 8462), (4231, 4900)]