1556180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 3628800

約数和(自身を除く): 2072620

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 199, 230, 340, 391, 398, 460, 782, 796, 995, 1564, 1955, 1990, 3383, 3910, 3980, 4577, 6766, 7820, 9154, 13532, 16915, 18308, 22885, 33830, 45770, 67660, 77809, 91540, 155618, 311236, 389045, 778090, 1556180]

約数ペア:

[(1, 1556180), (2, 778090), (4, 389045), (5, 311236), (10, 155618), (17, 91540), (20, 77809), (23, 67660), (34, 45770), (46, 33830), (68, 22885), (85, 18308), (92, 16915), (115, 13532), (170, 9154), (199, 7820), (230, 6766), (340, 4577), (391, 3980), (398, 3910), (460, 3383), (782, 1990), (796, 1955), (995, 1564)]