215205172

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 518976640

約数和(自身を除く): 303771468

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 29, 37, 38, 52, 58, 74, 76, 91, 116, 133, 148, 182, 203, 247, 259, 266, 364, 377, 406, 481, 494, 518, 532, 551, 703, 754, 812, 841, 962, 988, 1036, 1073, 1102, 1406, 1508, 1682, 1729, 1924, 2146, 2204, 2639, 2812, 3364, 3367, 3458, 3857, 4292, 4921, 5278, 5887, 6734, 6916, 7163, 7511, 7714, 9139, 9842, 10556, 10933, 11774, 13468, 13949, 14326, 15022, 15428, 15979, 18278, 19684, 20387, 21866, 23548, 27898, 28652, 30044, 31117, 31958, 36556, 40774, 43732, 50141, 55796, 62234, 63916, 63973, 76531, 81548, 97643, 100282, 111853, 124468, 127946, 142709, 153062, 195286, 200564, 207727, 217819, 223706, 255892, 265031, 285418, 306124, 390572, 404521, 415454, 435638, 447412, 530062, 570836, 591223, 809042, 830908, 871276, 1060124, 1182446, 1454089, 1618084, 1855217, 2364892, 2831647, 2908178, 3710434, 4138561, 5663294, 5816356, 7420868, 7685899, 8277122, 11326588, 15371798, 16554244, 30743596, 53801293, 107602586, 215205172]

約数ペア:

[(1, 215205172), (2, 107602586), (4, 53801293), (7, 30743596), (13, 16554244), (14, 15371798), (19, 11326588), (26, 8277122), (28, 7685899), (29, 7420868), (37, 5816356), (38, 5663294), (52, 4138561), (58, 3710434), (74, 2908178), (76, 2831647), (91, 2364892), (116, 1855217), (133, 1618084), (148, 1454089), (182, 1182446), (203, 1060124), (247, 871276), (259, 830908), (266, 809042), (364, 591223), (377, 570836), (406, 530062), (481, 447412), (494, 435638), (518, 415454), (532, 404521), (551, 390572), (703, 306124), (754, 285418), (812, 265031), (841, 255892), (962, 223706), (988, 217819), (1036, 207727), (1073, 200564), (1102, 195286), (1406, 153062), (1508, 142709), (1682, 127946), (1729, 124468), (1924, 111853), (2146, 100282), (2204, 97643), (2639, 81548), (2812, 76531), (3364, 63973), (3367, 63916), (3458, 62234), (3857, 55796), (4292, 50141), (4921, 43732), (5278, 40774), (5887, 36556), (6734, 31958), (6916, 31117), (7163, 30044), (7511, 28652), (7714, 27898), (9139, 23548), (9842, 21866), (10556, 20387), (10933, 19684), (11774, 18278), (13468, 15979), (13949, 15428), (14326, 15022)]