20185904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2887}}^1$

素因数の和:2937

約数の個数: 40

約数和(自身を含む): 42973440

約数和(自身を除く): 22787536

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2887, 3496, 5774, 6992, 11548, 23096, 46192, 54853, 66401, 109706, 132802, 219412, 265604, 438824, 531208, 877648, 1062416, 1261619, 2523238, 5046476, 10092952, 20185904]

約数ペア:

[(1, 20185904), (2, 10092952), (4, 5046476), (8, 2523238), (16, 1261619), (19, 1062416), (23, 877648), (38, 531208), (46, 438824), (76, 265604), (92, 219412), (152, 132802), (184, 109706), (304, 66401), (368, 54853), (437, 46192), (874, 23096), (1748, 11548), (2887, 6992), (3496, 5774)]