12780828

素因数分解:

$2^2\times 3^8\times {\mathrm{487}}^1$

素因数の和:515

約数の個数: 54

約数和(自身を含む): 33616856

約数和(自身を除く): 20836028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 487, 729, 972, 974, 1458, 1461, 1948, 2187, 2916, 2922, 4374, 4383, 5844, 6561, 8748, 8766, 13122, 13149, 17532, 26244, 26298, 39447, 52596, 78894, 118341, 157788, 236682, 355023, 473364, 710046, 1065069, 1420092, 2130138, 3195207, 4260276, 6390414, 12780828]

約数ペア:

[(1, 12780828), (2, 6390414), (3, 4260276), (4, 3195207), (6, 2130138), (9, 1420092), (12, 1065069), (18, 710046), (27, 473364), (36, 355023), (54, 236682), (81, 157788), (108, 118341), (162, 78894), (243, 52596), (324, 39447), (486, 26298), (487, 26244), (729, 17532), (972, 13149), (974, 13122), (1458, 8766), (1461, 8748), (1948, 6561), (2187, 5844), (2916, 4383), (2922, 4374)]