287972854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 509644800

約数和(自身を除く): 221671946

約数列:

[1, 2, 13, 19, 26, 38, 47, 79, 94, 157, 158, 247, 314, 494, 611, 893, 1027, 1222, 1501, 1786, 2041, 2054, 2983, 3002, 3713, 4082, 5966, 7379, 7426, 11609, 12403, 14758, 19513, 23218, 24806, 38779, 39026, 48269, 70547, 77558, 95927, 96538, 140201, 141094, 161239, 191854, 235657, 280402, 322478, 471314, 582941, 917111, 1165882, 1822613, 1834222, 3063541, 3645226, 6127082, 7578233, 11075879, 15156466, 22151758, 143986427, 287972854]

約数ペア:

[(1, 287972854), (2, 143986427), (13, 22151758), (19, 15156466), (26, 11075879), (38, 7578233), (47, 6127082), (79, 3645226), (94, 3063541), (157, 1834222), (158, 1822613), (247, 1165882), (314, 917111), (494, 582941), (611, 471314), (893, 322478), (1027, 280402), (1222, 235657), (1501, 191854), (1786, 161239), (2041, 141094), (2054, 140201), (2983, 96538), (3002, 95927), (3713, 77558), (4082, 70547), (5966, 48269), (7379, 39026), (7426, 38779), (11609, 24806), (12403, 23218), (14758, 19513)]