2005660

素因数分解:

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

素因数の和:390

約数の個数: 36

約数和(自身を含む): 4487112

約数和(自身を除く): 2481452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 347, 578, 694, 1156, 1388, 1445, 1735, 2890, 3470, 5780, 5899, 6940, 11798, 23596, 29495, 58990, 100283, 117980, 200566, 401132, 501415, 1002830, 2005660]

約数ペア:

[(1, 2005660), (2, 1002830), (4, 501415), (5, 401132), (10, 200566), (17, 117980), (20, 100283), (34, 58990), (68, 29495), (85, 23596), (170, 11798), (289, 6940), (340, 5899), (347, 5780), (578, 3470), (694, 2890), (1156, 1735), (1388, 1445)]