245907840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{607}}^1$

素因数の和:840

約数の個数: 128

約数和(自身を含む): 788843520

約数和(自身を除く): 542935680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 211, 240, 320, 384, 422, 480, 607, 633, 640, 844, 960, 1055, 1214, 1266, 1688, 1821, 1920, 2110, 2428, 2532, 3035, 3165, 3376, 3642, 4220, 4856, 5064, 6070, 6330, 6752, 7284, 8440, 9105, 9712, 10128, 12140, 12660, 13504, 14568, 16880, 18210, 19424, 20256, 24280, 25320, 27008, 29136, 33760, 36420, 38848, 40512, 48560, 50640, 58272, 67520, 72840, 77696, 81024, 97120, 101280, 116544, 128077, 135040, 145680, 194240, 202560, 233088, 256154, 291360, 384231, 388480, 405120, 512308, 582720, 640385, 768462, 1024616, 1165440, 1280770, 1536924, 1921155, 2049232, 2561540, 3073848, 3842310, 4098464, 5123080, 6147696, 7684620, 8196928, 10246160, 12295392, 15369240, 16393856, 20492320, 24590784, 30738480, 40984640, 49181568, 61476960, 81969280, 122953920, 245907840]

約数ペア:

[(1, 245907840), (2, 122953920), (3, 81969280), (4, 61476960), (5, 49181568), (6, 40984640), (8, 30738480), (10, 24590784), (12, 20492320), (15, 16393856), (16, 15369240), (20, 12295392), (24, 10246160), (30, 8196928), (32, 7684620), (40, 6147696), (48, 5123080), (60, 4098464), (64, 3842310), (80, 3073848), (96, 2561540), (120, 2049232), (128, 1921155), (160, 1536924), (192, 1280770), (211, 1165440), (240, 1024616), (320, 768462), (384, 640385), (422, 582720), (480, 512308), (607, 405120), (633, 388480), (640, 384231), (844, 291360), (960, 256154), (1055, 233088), (1214, 202560), (1266, 194240), (1688, 145680), (1821, 135040), (1920, 128077), (2110, 116544), (2428, 101280), (2532, 97120), (3035, 81024), (3165, 77696), (3376, 72840), (3642, 67520), (4220, 58272), (4856, 50640), (5064, 48560), (6070, 40512), (6330, 38848), (6752, 36420), (7284, 33760), (8440, 29136), (9105, 27008), (9712, 25320), (10128, 24280), (12140, 20256), (12660, 19424), (13504, 18210), (14568, 16880)]