18657485

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 64

約数和(自身を含む): 30412800

約数和(自身を除く): 11755315

約数列:

[1, 5, 7, 11, 23, 35, 43, 49, 55, 77, 115, 161, 215, 245, 253, 301, 343, 385, 473, 539, 805, 989, 1127, 1265, 1505, 1715, 1771, 2107, 2365, 2695, 3311, 3773, 4945, 5635, 6923, 7889, 8855, 10535, 10879, 12397, 14749, 16555, 18865, 23177, 34615, 39445, 48461, 54395, 61985, 73745, 76153, 86779, 115885, 162239, 242305, 339227, 380765, 433895, 533071, 811195, 1696135, 2665355, 3731497, 18657485]

約数ペア:

[(1, 18657485), (5, 3731497), (7, 2665355), (11, 1696135), (23, 811195), (35, 533071), (43, 433895), (49, 380765), (55, 339227), (77, 242305), (115, 162239), (161, 115885), (215, 86779), (245, 76153), (253, 73745), (301, 61985), (343, 54395), (385, 48461), (473, 39445), (539, 34615), (805, 23177), (989, 18865), (1127, 16555), (1265, 14749), (1505, 12397), (1715, 10879), (1771, 10535), (2107, 8855), (2365, 7889), (2695, 6923), (3311, 5635), (3773, 4945)]