20161920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10501}}^1$

素因数の和:10523

約数の個数: 64

約数和(自身を含む): 64272240

約数和(自身を除く): 44110320

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, 320, 384, 480, 640, 960, 1920, 10501, 21002, 31503, 42004, 52505, 63006, 84008, 105010, 126012, 157515, 168016, 210020, 252024, 315030, 336032, 420040, 504048, 630060, 672064, 840080, 1008096, 1260120, 1344128, 1680160, 2016192, 2520240, 3360320, 4032384, 5040480, 6720640, 10080960, 20161920]

約数ペア:

[(1, 20161920), (2, 10080960), (3, 6720640), (4, 5040480), (5, 4032384), (6, 3360320), (8, 2520240), (10, 2016192), (12, 1680160), (15, 1344128), (16, 1260120), (20, 1008096), (24, 840080), (30, 672064), (32, 630060), (40, 504048), (48, 420040), (60, 336032), (64, 315030), (80, 252024), (96, 210020), (120, 168016), (128, 157515), (160, 126012), (192, 105010), (240, 84008), (320, 63006), (384, 52505), (480, 42004), (640, 31503), (960, 21002), (1920, 10501)]