20831600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2741}}^1$

素因数の和:2778

約数の個数: 60

約数和(自身を含む): 52701240

約数和(自身を除く): 31869640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2741, 3800, 5482, 7600, 10964, 13705, 21928, 27410, 43856, 52079, 54820, 68525, 104158, 109640, 137050, 208316, 219280, 260395, 274100, 416632, 520790, 548200, 833264, 1041580, 1096400, 1301975, 2083160, 2603950, 4166320, 5207900, 10415800, 20831600]

約数ペア:

[(1, 20831600), (2, 10415800), (4, 5207900), (5, 4166320), (8, 2603950), (10, 2083160), (16, 1301975), (19, 1096400), (20, 1041580), (25, 833264), (38, 548200), (40, 520790), (50, 416632), (76, 274100), (80, 260395), (95, 219280), (100, 208316), (152, 137050), (190, 109640), (200, 104158), (304, 68525), (380, 54820), (400, 52079), (475, 43856), (760, 27410), (950, 21928), (1520, 13705), (1900, 10964), (2741, 7600), (3800, 5482)]