270640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1$

素因数の和:229

約数の個数: 40

約数和(自身を含む): 669600

約数和(自身を除く): 398960

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 199, 272, 340, 398, 680, 796, 995, 1360, 1592, 1990, 3184, 3383, 3980, 6766, 7960, 13532, 15920, 16915, 27064, 33830, 54128, 67660, 135320, 270640]

約数ペア:

[(1, 270640), (2, 135320), (4, 67660), (5, 54128), (8, 33830), (10, 27064), (16, 16915), (17, 15920), (20, 13532), (34, 7960), (40, 6766), (68, 3980), (80, 3383), (85, 3184), (136, 1990), (170, 1592), (199, 1360), (272, 995), (340, 796), (398, 680)]