20857920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21727}}^1$

素因数の和:21747

約数の個数: 56

約数和(自身を含む): 66226944

約数和(自身を除く): 45369024

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, 160, 192, 240, 320, 480, 960, 21727, 43454, 65181, 86908, 108635, 130362, 173816, 217270, 260724, 325905, 347632, 434540, 521448, 651810, 695264, 869080, 1042896, 1303620, 1390528, 1738160, 2085792, 2607240, 3476320, 4171584, 5214480, 6952640, 10428960, 20857920]

約数ペア:

[(1, 20857920), (2, 10428960), (3, 6952640), (4, 5214480), (5, 4171584), (6, 3476320), (8, 2607240), (10, 2085792), (12, 1738160), (15, 1390528), (16, 1303620), (20, 1042896), (24, 869080), (30, 695264), (32, 651810), (40, 521448), (48, 434540), (60, 347632), (64, 325905), (80, 260724), (96, 217270), (120, 173816), (160, 130362), (192, 108635), (240, 86908), (320, 65181), (480, 43454), (960, 21727)]