19811340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110063}}^1$

素因数の和:110078

約数の個数: 36

約数和(自身を含む): 60094944

約数和(自身を除く): 40283604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110063, 220126, 330189, 440252, 550315, 660378, 990567, 1100630, 1320756, 1650945, 1981134, 2201260, 3301890, 3962268, 4952835, 6603780, 9905670, 19811340]

約数ペア:

[(1, 19811340), (2, 9905670), (3, 6603780), (4, 4952835), (5, 3962268), (6, 3301890), (9, 2201260), (10, 1981134), (12, 1650945), (15, 1320756), (18, 1100630), (20, 990567), (30, 660378), (36, 550315), (45, 440252), (60, 330189), (90, 220126), (180, 110063)]