268335980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 640120320

約数和(自身を除く): 371784340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 71, 82, 110, 142, 164, 205, 220, 284, 355, 410, 419, 451, 710, 781, 820, 838, 902, 1420, 1562, 1676, 1804, 2095, 2255, 2911, 3124, 3905, 4190, 4510, 4609, 5822, 7810, 8380, 9020, 9218, 11644, 14555, 15620, 17179, 18436, 23045, 29110, 29749, 32021, 34358, 46090, 58220, 59498, 64042, 68716, 85895, 92180, 118996, 128084, 148745, 160105, 171790, 188969, 297490, 320210, 327239, 343580, 377938, 594980, 640420, 654478, 755876, 944845, 1219709, 1308956, 1636195, 1889690, 2439418, 3272390, 3779380, 4878836, 6098545, 6544780, 12197090, 13416799, 24394180, 26833598, 53667196, 67083995, 134167990, 268335980]

約数ペア:

[(1, 268335980), (2, 134167990), (4, 67083995), (5, 53667196), (10, 26833598), (11, 24394180), (20, 13416799), (22, 12197090), (41, 6544780), (44, 6098545), (55, 4878836), (71, 3779380), (82, 3272390), (110, 2439418), (142, 1889690), (164, 1636195), (205, 1308956), (220, 1219709), (284, 944845), (355, 755876), (410, 654478), (419, 640420), (451, 594980), (710, 377938), (781, 343580), (820, 327239), (838, 320210), (902, 297490), (1420, 188969), (1562, 171790), (1676, 160105), (1804, 148745), (2095, 128084), (2255, 118996), (2911, 92180), (3124, 85895), (3905, 68716), (4190, 64042), (4510, 59498), (4609, 58220), (5822, 46090), (7810, 34358), (8380, 32021), (9020, 29749), (9218, 29110), (11644, 23045), (14555, 18436), (15620, 17179)]