251439768

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:542

約数の個数: 128

約数和(自身を含む): 741312000

約数和(自身を除く): 489872232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 197, 216, 228, 311, 342, 394, 456, 513, 591, 622, 684, 788, 933, 1026, 1182, 1244, 1368, 1576, 1773, 1866, 2052, 2364, 2488, 2799, 3546, 3732, 3743, 4104, 4728, 5319, 5598, 5909, 7092, 7464, 7486, 8397, 10638, 11196, 11229, 11818, 14184, 14972, 16794, 17727, 21276, 22392, 22458, 23636, 29944, 33588, 33687, 35454, 42552, 44916, 47272, 53181, 61267, 67176, 67374, 70908, 89832, 101061, 106362, 122534, 134748, 141816, 159543, 183801, 202122, 212724, 245068, 269496, 319086, 367602, 404244, 425448, 490136, 551403, 638172, 735204, 808488, 1102806, 1164073, 1276344, 1470408, 1654209, 2205612, 2328146, 3308418, 3492219, 4411224, 4656292, 6616836, 6984438, 9312584, 10476657, 13233672, 13968876, 20953314, 27937752, 31429971, 41906628, 62859942, 83813256, 125719884, 251439768]

約数ペア:

[(1, 251439768), (2, 125719884), (3, 83813256), (4, 62859942), (6, 41906628), (8, 31429971), (9, 27937752), (12, 20953314), (18, 13968876), (19, 13233672), (24, 10476657), (27, 9312584), (36, 6984438), (38, 6616836), (54, 4656292), (57, 4411224), (72, 3492219), (76, 3308418), (108, 2328146), (114, 2205612), (152, 1654209), (171, 1470408), (197, 1276344), (216, 1164073), (228, 1102806), (311, 808488), (342, 735204), (394, 638172), (456, 551403), (513, 490136), (591, 425448), (622, 404244), (684, 367602), (788, 319086), (933, 269496), (1026, 245068), (1182, 212724), (1244, 202122), (1368, 183801), (1576, 159543), (1773, 141816), (1866, 134748), (2052, 122534), (2364, 106362), (2488, 101061), (2799, 89832), (3546, 70908), (3732, 67374), (3743, 67176), (4104, 61267), (4728, 53181), (5319, 47272), (5598, 44916), (5909, 42552), (7092, 35454), (7464, 33687), (7486, 33588), (8397, 29944), (10638, 23636), (11196, 22458), (11229, 22392), (11818, 21276), (14184, 17727), (14972, 16794)]