20409176

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{751}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 39705600

約数和(自身を除く): 19296424

約数列:

[1, 2, 4, 8, 43, 79, 86, 158, 172, 316, 344, 632, 751, 1502, 3004, 3397, 6008, 6794, 13588, 27176, 32293, 59329, 64586, 118658, 129172, 237316, 258344, 474632, 2551147, 5102294, 10204588, 20409176]

約数ペア:

[(1, 20409176), (2, 10204588), (4, 5102294), (8, 2551147), (43, 474632), (79, 258344), (86, 237316), (158, 129172), (172, 118658), (316, 64586), (344, 59329), (632, 32293), (751, 27176), (1502, 13588), (3004, 6794), (3397, 6008)]