1018220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1039}}^1$

素因数の和:1062

約数の個数: 36

約数和(自身を含む): 2489760

約数和(自身を除く): 1471540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1039, 2078, 4156, 5195, 7273, 10390, 14546, 20780, 29092, 36365, 50911, 72730, 101822, 145460, 203644, 254555, 509110, 1018220]

約数ペア:

[(1, 1018220), (2, 509110), (4, 254555), (5, 203644), (7, 145460), (10, 101822), (14, 72730), (20, 50911), (28, 36365), (35, 29092), (49, 20780), (70, 14546), (98, 10390), (140, 7273), (196, 5195), (245, 4156), (490, 2078), (980, 1039)]