381311931

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:257

約数の個数: 128

約数和(自身を含む): 740597760

約数和(自身を除く): 359285829

約数列:

[1, 3, 7, 11, 13, 19, 21, 33, 39, 41, 57, 77, 91, 123, 133, 143, 163, 209, 231, 247, 273, 287, 399, 429, 451, 489, 533, 627, 741, 779, 861, 1001, 1141, 1353, 1463, 1599, 1729, 1793, 2119, 2337, 2717, 3003, 3097, 3157, 3423, 3731, 4389, 5187, 5379, 5453, 5863, 6357, 6683, 8151, 8569, 9291, 9471, 10127, 11193, 12551, 14833, 16359, 17589, 19019, 20049, 21679, 23309, 25707, 30381, 34067, 37653, 40261, 41041, 44499, 46781, 57057, 59983, 65037, 69927, 70889, 73513, 86879, 102201, 111397, 120783, 123123, 126977, 140343, 163163, 179949, 212667, 220539, 238469, 260637, 281827, 334191, 380931, 442871, 489489, 514591, 608153, 715407, 779779, 845481, 888839, 955669, 1328613, 1396747, 1543773, 1650701, 1824459, 2339337, 2666517, 2867007, 3100097, 4190241, 4952103, 6689683, 9300291, 9777229, 11554907, 18157711, 20069049, 29331687, 34664721, 54473133, 127103977, 381311931]

約数ペア:

[(1, 381311931), (3, 127103977), (7, 54473133), (11, 34664721), (13, 29331687), (19, 20069049), (21, 18157711), (33, 11554907), (39, 9777229), (41, 9300291), (57, 6689683), (77, 4952103), (91, 4190241), (123, 3100097), (133, 2867007), (143, 2666517), (163, 2339337), (209, 1824459), (231, 1650701), (247, 1543773), (273, 1396747), (287, 1328613), (399, 955669), (429, 888839), (451, 845481), (489, 779779), (533, 715407), (627, 608153), (741, 514591), (779, 489489), (861, 442871), (1001, 380931), (1141, 334191), (1353, 281827), (1463, 260637), (1599, 238469), (1729, 220539), (1793, 212667), (2119, 179949), (2337, 163163), (2717, 140343), (3003, 126977), (3097, 123123), (3157, 120783), (3423, 111397), (3731, 102201), (4389, 86879), (5187, 73513), (5379, 70889), (5453, 69927), (5863, 65037), (6357, 59983), (6683, 57057), (8151, 46781), (8569, 44499), (9291, 41041), (9471, 40261), (10127, 37653), (11193, 34067), (12551, 30381), (14833, 25707), (16359, 23309), (17589, 21679), (19019, 20049)]