72752560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21149}}^1$

素因数の和:21205

約数の個数: 40

約数和(自身を含む): 173091600

約数和(自身を除く): 100339040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 21149, 42298, 84596, 105745, 169192, 211490, 338384, 422980, 845960, 909407, 1691920, 1818814, 3637628, 4547035, 7275256, 9094070, 14550512, 18188140, 36376280, 72752560]

約数ペア:

[(1, 72752560), (2, 36376280), (4, 18188140), (5, 14550512), (8, 9094070), (10, 7275256), (16, 4547035), (20, 3637628), (40, 1818814), (43, 1691920), (80, 909407), (86, 845960), (172, 422980), (215, 338384), (344, 211490), (430, 169192), (688, 105745), (860, 84596), (1720, 42298), (3440, 21149)]