720522068

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:709

約数の個数: 72

約数和(自身を含む): 1508220000

約数和(自身を除く): 787697932

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 139, 196, 212, 278, 371, 499, 556, 742, 973, 998, 1484, 1946, 1996, 2597, 3493, 3892, 5194, 6811, 6986, 7367, 10388, 13622, 13972, 14734, 24451, 26447, 27244, 29468, 48902, 51569, 52894, 69361, 97804, 103138, 105788, 138722, 185129, 206276, 277444, 360983, 370258, 485527, 721966, 740516, 971054, 1295903, 1443932, 1942108, 2591806, 3398689, 3676133, 5183612, 6797378, 7352266, 13594756, 14704532, 25732931, 51465862, 102931724, 180130517, 360261034, 720522068]

約数ペア:

[(1, 720522068), (2, 360261034), (4, 180130517), (7, 102931724), (14, 51465862), (28, 25732931), (49, 14704532), (53, 13594756), (98, 7352266), (106, 6797378), (139, 5183612), (196, 3676133), (212, 3398689), (278, 2591806), (371, 1942108), (499, 1443932), (556, 1295903), (742, 971054), (973, 740516), (998, 721966), (1484, 485527), (1946, 370258), (1996, 360983), (2597, 277444), (3493, 206276), (3892, 185129), (5194, 138722), (6811, 105788), (6986, 103138), (7367, 97804), (10388, 69361), (13622, 52894), (13972, 51569), (14734, 48902), (24451, 29468), (26447, 27244)]