180349988

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1913}}^1$

素因数の和:1981

約数の個数: 72

約数和(自身を含む): 406280952

約数和(自身を除く): 225930964

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 49, 52, 74, 91, 98, 148, 182, 196, 259, 364, 481, 518, 637, 962, 1036, 1274, 1813, 1913, 1924, 2548, 3367, 3626, 3826, 6734, 7252, 7652, 13391, 13468, 23569, 24869, 26782, 47138, 49738, 53564, 70781, 93737, 94276, 99476, 141562, 174083, 187474, 283124, 348166, 374948, 495467, 696332, 920153, 990934, 1218581, 1840306, 1981868, 2437162, 3468269, 3680612, 4874324, 6441071, 6936538, 12882142, 13873076, 25764284, 45087497, 90174994, 180349988]

約数ペア:

[(1, 180349988), (2, 90174994), (4, 45087497), (7, 25764284), (13, 13873076), (14, 12882142), (26, 6936538), (28, 6441071), (37, 4874324), (49, 3680612), (52, 3468269), (74, 2437162), (91, 1981868), (98, 1840306), (148, 1218581), (182, 990934), (196, 920153), (259, 696332), (364, 495467), (481, 374948), (518, 348166), (637, 283124), (962, 187474), (1036, 174083), (1274, 141562), (1813, 99476), (1913, 94276), (1924, 93737), (2548, 70781), (3367, 53564), (3626, 49738), (3826, 47138), (6734, 26782), (7252, 24869), (7652, 23569), (13391, 13468)]