20875168

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:397

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 22561568

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 113, 184, 226, 251, 368, 452, 502, 736, 904, 1004, 1808, 2008, 2599, 3616, 4016, 5198, 5773, 8032, 10396, 11546, 20792, 23092, 28363, 41584, 46184, 56726, 83168, 92368, 113452, 184736, 226904, 453808, 652349, 907616, 1304698, 2609396, 5218792, 10437584, 20875168]

約数ペア:

[(1, 20875168), (2, 10437584), (4, 5218792), (8, 2609396), (16, 1304698), (23, 907616), (32, 652349), (46, 453808), (92, 226904), (113, 184736), (184, 113452), (226, 92368), (251, 83168), (368, 56726), (452, 46184), (502, 41584), (736, 28363), (904, 23092), (1004, 20792), (1808, 11546), (2008, 10396), (2599, 8032), (3616, 5773), (4016, 5198)]