81334720

素因数分解:

$2^6\times 5^1\times {\mathrm{433}}^1\times {\mathrm{587}}^1$

素因数の和:1037

約数の個数: 56

約数和(自身を含む): 194456304

約数和(自身を除く): 113121584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 433, 587, 866, 1174, 1732, 2165, 2348, 2935, 3464, 4330, 4696, 5870, 6928, 8660, 9392, 11740, 13856, 17320, 18784, 23480, 27712, 34640, 37568, 46960, 69280, 93920, 138560, 187840, 254171, 508342, 1016684, 1270855, 2033368, 2541710, 4066736, 5083420, 8133472, 10166840, 16266944, 20333680, 40667360, 81334720]

約数ペア:

[(1, 81334720), (2, 40667360), (4, 20333680), (5, 16266944), (8, 10166840), (10, 8133472), (16, 5083420), (20, 4066736), (32, 2541710), (40, 2033368), (64, 1270855), (80, 1016684), (160, 508342), (320, 254171), (433, 187840), (587, 138560), (866, 93920), (1174, 69280), (1732, 46960), (2165, 37568), (2348, 34640), (2935, 27712), (3464, 23480), (4330, 18784), (4696, 17320), (5870, 13856), (6928, 11740), (8660, 9392)]