128903712

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:503

約数の個数: 144

約数和(自身を含む): 400468320

約数和(自身を除く): 271564608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 67, 84, 96, 98, 112, 134, 147, 168, 196, 201, 224, 268, 294, 336, 392, 402, 409, 469, 536, 588, 672, 784, 804, 818, 938, 1072, 1176, 1227, 1407, 1568, 1608, 1636, 1876, 2144, 2352, 2454, 2814, 2863, 3216, 3272, 3283, 3752, 4704, 4908, 5628, 5726, 6432, 6544, 6566, 7504, 8589, 9816, 9849, 11256, 11452, 13088, 13132, 15008, 17178, 19632, 19698, 20041, 22512, 22904, 26264, 27403, 34356, 39264, 39396, 40082, 45024, 45808, 52528, 54806, 60123, 68712, 78792, 80164, 82209, 91616, 105056, 109612, 120246, 137424, 157584, 160328, 164418, 191821, 219224, 240492, 274848, 315168, 320656, 328836, 383642, 438448, 480984, 575463, 641312, 657672, 767284, 876896, 961968, 1150926, 1315344, 1342747, 1534568, 1923936, 2301852, 2630688, 2685494, 3069136, 4028241, 4603704, 5370988, 6138272, 8056482, 9207408, 10741976, 16112964, 18414816, 21483952, 32225928, 42967904, 64451856, 128903712]

約数ペア:

[(1, 128903712), (2, 64451856), (3, 42967904), (4, 32225928), (6, 21483952), (7, 18414816), (8, 16112964), (12, 10741976), (14, 9207408), (16, 8056482), (21, 6138272), (24, 5370988), (28, 4603704), (32, 4028241), (42, 3069136), (48, 2685494), (49, 2630688), (56, 2301852), (67, 1923936), (84, 1534568), (96, 1342747), (98, 1315344), (112, 1150926), (134, 961968), (147, 876896), (168, 767284), (196, 657672), (201, 641312), (224, 575463), (268, 480984), (294, 438448), (336, 383642), (392, 328836), (402, 320656), (409, 315168), (469, 274848), (536, 240492), (588, 219224), (672, 191821), (784, 164418), (804, 160328), (818, 157584), (938, 137424), (1072, 120246), (1176, 109612), (1227, 105056), (1407, 91616), (1568, 82209), (1608, 80164), (1636, 78792), (1876, 68712), (2144, 60123), (2352, 54806), (2454, 52528), (2814, 45808), (2863, 45024), (3216, 40082), (3272, 39396), (3283, 39264), (3752, 34356), (4704, 27403), (4908, 26264), (5628, 22904), (5726, 22512), (6432, 20041), (6544, 19698), (6566, 19632), (7504, 17178), (8589, 15008), (9816, 13132), (9849, 13088), (11256, 11452)]