19400920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6299}}^1$

素因数の和:6328

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 35031080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6299, 12598, 25196, 31495, 44093, 50392, 62990, 69289, 88186, 125980, 138578, 176372, 220465, 251960, 277156, 346445, 352744, 440930, 485023, 554312, 692890, 881860, 970046, 1385780, 1763720, 1940092, 2425115, 2771560, 3880184, 4850230, 9700460, 19400920]

約数ペア:

[(1, 19400920), (2, 9700460), (4, 4850230), (5, 3880184), (7, 2771560), (8, 2425115), (10, 1940092), (11, 1763720), (14, 1385780), (20, 970046), (22, 881860), (28, 692890), (35, 554312), (40, 485023), (44, 440930), (55, 352744), (56, 346445), (70, 277156), (77, 251960), (88, 220465), (110, 176372), (140, 138578), (154, 125980), (220, 88186), (280, 69289), (308, 62990), (385, 50392), (440, 44093), (616, 31495), (770, 25196), (1540, 12598), (3080, 6299)]