81172025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 118117440

約数和(自身を除く): 36945415

約数列:

[1, 5, 11, 17, 25, 55, 85, 97, 179, 187, 275, 425, 485, 895, 935, 1067, 1649, 1969, 2425, 3043, 4475, 4675, 5335, 8245, 9845, 15215, 17363, 18139, 26675, 33473, 41225, 49225, 76075, 86815, 90695, 167365, 190993, 295171, 434075, 453475, 836825, 954965, 1475855, 3246881, 4774825, 7379275, 16234405, 81172025]

約数ペア:

[(1, 81172025), (5, 16234405), (11, 7379275), (17, 4774825), (25, 3246881), (55, 1475855), (85, 954965), (97, 836825), (179, 453475), (187, 434075), (275, 295171), (425, 190993), (485, 167365), (895, 90695), (935, 86815), (1067, 76075), (1649, 49225), (1969, 41225), (2425, 33473), (3043, 26675), (4475, 18139), (4675, 17363), (5335, 15215), (8245, 9845)]