20156856520

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1916051}}^1$

素因数の和:1916325

約数の個数: 32

約数和(自身を含む): 45525395520

約数和(自身を除く): 25368539000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 1916051, 3832102, 7664204, 9580255, 15328408, 19160510, 38321020, 76642040, 503921413, 1007842826, 2015685652, 2519607065, 4031371304, 5039214130, 10078428260, 20156856520]

約数ペア:

[(1, 20156856520), (2, 10078428260), (4, 5039214130), (5, 4031371304), (8, 2519607065), (10, 2015685652), (20, 1007842826), (40, 503921413), (263, 76642040), (526, 38321020), (1052, 19160510), (1315, 15328408), (2104, 9580255), (2630, 7664204), (5260, 3832102), (10520, 1916051)]