408378512

素因数分解:

$2^4\times {\mathrm{1997}}^1\times {\mathrm{12781}}^1$

素因数の和:14786

約数の個数: 20

約数和(自身を含む): 791691516

約数和(自身を除く): 383313004

約数列:

[1, 2, 4, 8, 16, 1997, 3994, 7988, 12781, 15976, 25562, 31952, 51124, 102248, 204496, 25523657, 51047314, 102094628, 204189256, 408378512]

約数ペア:

[(1, 408378512), (2, 204189256), (4, 102094628), (8, 51047314), (16, 25523657), (1997, 204496), (3994, 102248), (7988, 51124), (12781, 31952), (15976, 25562)]