256457520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32381}}^1$

素因数の和:32411

約数の個数: 120

約数和(自身を含む): 939596112

約数和(自身を除く): 683138592

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 32381, 64762, 97143, 129524, 161905, 194286, 259048, 291429, 323810, 356191, 388572, 485715, 518096, 582858, 647620, 712382, 777144, 971430, 1068573, 1165716, 1295240, 1424764, 1457145, 1554288, 1780955, 1942860, 2137146, 2331432, 2590480, 2849528, 2914290, 3205719, 3561910, 3885720, 4274292, 4662864, 5342865, 5699056, 5828580, 6411438, 7123820, 7771440, 8548584, 10685730, 11657160, 12822876, 14247640, 16028595, 17097168, 21371460, 23314320, 25645752, 28495280, 32057190, 42742920, 51291504, 64114380, 85485840, 128228760, 256457520]

約数ペア:

[(1, 256457520), (2, 128228760), (3, 85485840), (4, 64114380), (5, 51291504), (6, 42742920), (8, 32057190), (9, 28495280), (10, 25645752), (11, 23314320), (12, 21371460), (15, 17097168), (16, 16028595), (18, 14247640), (20, 12822876), (22, 11657160), (24, 10685730), (30, 8548584), (33, 7771440), (36, 7123820), (40, 6411438), (44, 5828580), (45, 5699056), (48, 5342865), (55, 4662864), (60, 4274292), (66, 3885720), (72, 3561910), (80, 3205719), (88, 2914290), (90, 2849528), (99, 2590480), (110, 2331432), (120, 2137146), (132, 1942860), (144, 1780955), (165, 1554288), (176, 1457145), (180, 1424764), (198, 1295240), (220, 1165716), (240, 1068573), (264, 971430), (330, 777144), (360, 712382), (396, 647620), (440, 582858), (495, 518096), (528, 485715), (660, 388572), (720, 356191), (792, 323810), (880, 291429), (990, 259048), (1320, 194286), (1584, 161905), (1980, 129524), (2640, 97143), (3960, 64762), (7920, 32381)]