1380821372

素因数分解:

$2^2\times 7^2\times {\mathrm{7045007}}^1$

素因数の和:7045025

約数の個数: 18

約数和(自身を含む): 2810958192

約数和(自身を除く): 1430136820

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 7045007, 14090014, 28180028, 49315049, 98630098, 197260196, 345205343, 690410686, 1380821372]

約数ペア:

[(1, 1380821372), (2, 690410686), (4, 345205343), (7, 197260196), (14, 98630098), (28, 49315049), (49, 28180028), (98, 14090014), (196, 7045007)]