266520640

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:516

約数の個数: 112

約数和(自身を含む): 666561024

約数和(自身を除く): 400040384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 67, 80, 124, 134, 155, 160, 248, 268, 310, 320, 335, 401, 496, 536, 620, 670, 802, 992, 1072, 1240, 1340, 1604, 1984, 2005, 2077, 2144, 2480, 2680, 3208, 4010, 4154, 4288, 4960, 5360, 6416, 8020, 8308, 9920, 10385, 10720, 12431, 12832, 16040, 16616, 20770, 21440, 24862, 25664, 26867, 32080, 33232, 41540, 49724, 53734, 62155, 64160, 66464, 83080, 99448, 107468, 124310, 128320, 132928, 134335, 166160, 198896, 214936, 248620, 268670, 332320, 397792, 429872, 497240, 537340, 664640, 795584, 832877, 859744, 994480, 1074680, 1665754, 1719488, 1988960, 2149360, 3331508, 3977920, 4164385, 4298720, 6663016, 8328770, 8597440, 13326032, 16657540, 26652064, 33315080, 53304128, 66630160, 133260320, 266520640]

約数ペア:

[(1, 266520640), (2, 133260320), (4, 66630160), (5, 53304128), (8, 33315080), (10, 26652064), (16, 16657540), (20, 13326032), (31, 8597440), (32, 8328770), (40, 6663016), (62, 4298720), (64, 4164385), (67, 3977920), (80, 3331508), (124, 2149360), (134, 1988960), (155, 1719488), (160, 1665754), (248, 1074680), (268, 994480), (310, 859744), (320, 832877), (335, 795584), (401, 664640), (496, 537340), (536, 497240), (620, 429872), (670, 397792), (802, 332320), (992, 268670), (1072, 248620), (1240, 214936), (1340, 198896), (1604, 166160), (1984, 134335), (2005, 132928), (2077, 128320), (2144, 124310), (2480, 107468), (2680, 99448), (3208, 83080), (4010, 66464), (4154, 64160), (4288, 62155), (4960, 53734), (5360, 49724), (6416, 41540), (8020, 33232), (8308, 32080), (9920, 26867), (10385, 25664), (10720, 24862), (12431, 21440), (12832, 20770), (16040, 16616)]