81507090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{89}}^2$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 230716800

約数和(自身を除く): 149209710

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 89, 98, 105, 147, 178, 210, 245, 267, 294, 343, 445, 490, 534, 623, 686, 735, 890, 1029, 1246, 1335, 1470, 1715, 1869, 2058, 2670, 3115, 3430, 3738, 4361, 5145, 6230, 7921, 8722, 9345, 10290, 13083, 15842, 18690, 21805, 23763, 26166, 30527, 39605, 43610, 47526, 55447, 61054, 65415, 79210, 91581, 110894, 118815, 130830, 152635, 166341, 183162, 237630, 277235, 305270, 332682, 388129, 457905, 554470, 776258, 831705, 915810, 1164387, 1663410, 1940645, 2328774, 2716903, 3881290, 5433806, 5821935, 8150709, 11643870, 13584515, 16301418, 27169030, 40753545, 81507090]

約数ペア:

[(1, 81507090), (2, 40753545), (3, 27169030), (5, 16301418), (6, 13584515), (7, 11643870), (10, 8150709), (14, 5821935), (15, 5433806), (21, 3881290), (30, 2716903), (35, 2328774), (42, 1940645), (49, 1663410), (70, 1164387), (89, 915810), (98, 831705), (105, 776258), (147, 554470), (178, 457905), (210, 388129), (245, 332682), (267, 305270), (294, 277235), (343, 237630), (445, 183162), (490, 166341), (534, 152635), (623, 130830), (686, 118815), (735, 110894), (890, 91581), (1029, 79210), (1246, 65415), (1335, 61054), (1470, 55447), (1715, 47526), (1869, 43610), (2058, 39605), (2670, 30527), (3115, 26166), (3430, 23763), (3738, 21805), (4361, 18690), (5145, 15842), (6230, 13083), (7921, 10290), (8722, 9345)]