12859820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 28939680

約数和(自身を除く): 16079860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 347, 436, 545, 694, 1090, 1388, 1735, 1853, 2180, 3470, 3706, 5899, 6940, 7412, 9265, 11798, 18530, 23596, 29495, 37060, 37823, 58990, 75646, 117980, 151292, 189115, 378230, 642991, 756460, 1285982, 2571964, 3214955, 6429910, 12859820]

約数ペア:

[(1, 12859820), (2, 6429910), (4, 3214955), (5, 2571964), (10, 1285982), (17, 756460), (20, 642991), (34, 378230), (68, 189115), (85, 151292), (109, 117980), (170, 75646), (218, 58990), (340, 37823), (347, 37060), (436, 29495), (545, 23596), (694, 18530), (1090, 11798), (1388, 9265), (1735, 7412), (1853, 6940), (2180, 5899), (3470, 3706)]