20197485

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:128

約数の個数: 128

約数和(自身を含む): 47001600

約数和(自身を除く): 26804115

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 29, 33, 35, 45, 55, 63, 67, 77, 87, 99, 105, 135, 145, 165, 189, 201, 203, 231, 261, 297, 315, 319, 335, 385, 435, 469, 495, 603, 609, 693, 737, 783, 945, 957, 1005, 1015, 1155, 1305, 1407, 1485, 1595, 1809, 1827, 1943, 2079, 2211, 2233, 2345, 2871, 3015, 3045, 3465, 3685, 3915, 4221, 4785, 5159, 5481, 5829, 6633, 6699, 7035, 8613, 9045, 9135, 9715, 10395, 11055, 11165, 12663, 13601, 14355, 15477, 17487, 19899, 20097, 21105, 21373, 25795, 27405, 29145, 33165, 33495, 40803, 43065, 46431, 52461, 60291, 63315, 64119, 68005, 77385, 87435, 99495, 100485, 106865, 122409, 139293, 149611, 192357, 204015, 232155, 262305, 301455, 320595, 367227, 448833, 577071, 612045, 696465, 748055, 961785, 1346499, 1836135, 2244165, 2885355, 4039497, 6732495, 20197485]

約数ペア:

[(1, 20197485), (3, 6732495), (5, 4039497), (7, 2885355), (9, 2244165), (11, 1836135), (15, 1346499), (21, 961785), (27, 748055), (29, 696465), (33, 612045), (35, 577071), (45, 448833), (55, 367227), (63, 320595), (67, 301455), (77, 262305), (87, 232155), (99, 204015), (105, 192357), (135, 149611), (145, 139293), (165, 122409), (189, 106865), (201, 100485), (203, 99495), (231, 87435), (261, 77385), (297, 68005), (315, 64119), (319, 63315), (335, 60291), (385, 52461), (435, 46431), (469, 43065), (495, 40803), (603, 33495), (609, 33165), (693, 29145), (737, 27405), (783, 25795), (945, 21373), (957, 21105), (1005, 20097), (1015, 19899), (1155, 17487), (1305, 15477), (1407, 14355), (1485, 13601), (1595, 12663), (1809, 11165), (1827, 11055), (1943, 10395), (2079, 9715), (2211, 9135), (2233, 9045), (2345, 8613), (2871, 7035), (3015, 6699), (3045, 6633), (3465, 5829), (3685, 5481), (3915, 5159), (4221, 4785)]