19691520

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 96

約数和(自身を含む): 63095760

約数和(自身を除く): 43404240

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, 240, 256, 320, 384, 480, 512, 640, 641, 768, 960, 1024, 1280, 1282, 1536, 1920, 1923, 2048, 2560, 2564, 3072, 3205, 3840, 3846, 5120, 5128, 6144, 6410, 7680, 7692, 9615, 10240, 10256, 12820, 15360, 15384, 19230, 20512, 25640, 30720, 30768, 38460, 41024, 51280, 61536, 76920, 82048, 102560, 123072, 153840, 164096, 205120, 246144, 307680, 328192, 410240, 492288, 615360, 656384, 820480, 984576, 1230720, 1312768, 1640960, 1969152, 2461440, 3281920, 3938304, 4922880, 6563840, 9845760, 19691520]

約数ペア:

[(1, 19691520), (2, 9845760), (3, 6563840), (4, 4922880), (5, 3938304), (6, 3281920), (8, 2461440), (10, 1969152), (12, 1640960), (15, 1312768), (16, 1230720), (20, 984576), (24, 820480), (30, 656384), (32, 615360), (40, 492288), (48, 410240), (60, 328192), (64, 307680), (80, 246144), (96, 205120), (120, 164096), (128, 153840), (160, 123072), (192, 102560), (240, 82048), (256, 76920), (320, 61536), (384, 51280), (480, 41024), (512, 38460), (640, 30768), (641, 30720), (768, 25640), (960, 20512), (1024, 19230), (1280, 15384), (1282, 15360), (1536, 12820), (1920, 10256), (1923, 10240), (2048, 9615), (2560, 7692), (2564, 7680), (3072, 6410), (3205, 6144), (3840, 5128), (3846, 5120)]