18977887952

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{449117}}^1$

素因数の和:449283

約数の個数: 40

約数和(自身を含む): 38983442400

約数和(自身を除く): 20005554448

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 139, 152, 278, 304, 556, 1112, 2224, 2641, 5282, 10564, 21128, 42256, 449117, 898234, 1796468, 3592936, 7185872, 8533223, 17066446, 34132892, 62427263, 68265784, 124854526, 136531568, 249709052, 499418104, 998836208, 1186117997, 2372235994, 4744471988, 9488943976, 18977887952]

約数ペア:

[(1, 18977887952), (2, 9488943976), (4, 4744471988), (8, 2372235994), (16, 1186117997), (19, 998836208), (38, 499418104), (76, 249709052), (139, 136531568), (152, 124854526), (278, 68265784), (304, 62427263), (556, 34132892), (1112, 17066446), (2224, 8533223), (2641, 7185872), (5282, 3592936), (10564, 1796468), (21128, 898234), (42256, 449117)]