20734448

素因数分解:

$2^4\times 7^2\times {\mathrm{53}}^1\times {\mathrm{499}}^1$

素因数の和:574

約数の個数: 60

約数和(自身を含む): 47709000

約数和(自身を除く): 26974552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 53, 56, 98, 106, 112, 196, 212, 371, 392, 424, 499, 742, 784, 848, 998, 1484, 1996, 2597, 2968, 3493, 3992, 5194, 5936, 6986, 7984, 10388, 13972, 20776, 24451, 26447, 27944, 41552, 48902, 52894, 55888, 97804, 105788, 185129, 195608, 211576, 370258, 391216, 423152, 740516, 1295903, 1481032, 2591806, 2962064, 5183612, 10367224, 20734448]

約数ペア:

[(1, 20734448), (2, 10367224), (4, 5183612), (7, 2962064), (8, 2591806), (14, 1481032), (16, 1295903), (28, 740516), (49, 423152), (53, 391216), (56, 370258), (98, 211576), (106, 195608), (112, 185129), (196, 105788), (212, 97804), (371, 55888), (392, 52894), (424, 48902), (499, 41552), (742, 27944), (784, 26447), (848, 24451), (998, 20776), (1484, 13972), (1996, 10388), (2597, 7984), (2968, 6986), (3493, 5936), (3992, 5194)]