20199578528

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{400277}}^1$

素因数の和:400389

約数の個数: 48

約数和(自身を含む): 42365423520

約数和(自身を除く): 22165844992

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 83, 152, 166, 304, 332, 608, 664, 1328, 1577, 2656, 3154, 6308, 12616, 25232, 50464, 400277, 800554, 1601108, 3202216, 6404432, 7605263, 12808864, 15210526, 30421052, 33222991, 60842104, 66445982, 121684208, 132891964, 243368416, 265783928, 531567856, 631236829, 1063135712, 1262473658, 2524947316, 5049894632, 10099789264, 20199578528]

約数ペア:

[(1, 20199578528), (2, 10099789264), (4, 5049894632), (8, 2524947316), (16, 1262473658), (19, 1063135712), (32, 631236829), (38, 531567856), (76, 265783928), (83, 243368416), (152, 132891964), (166, 121684208), (304, 66445982), (332, 60842104), (608, 33222991), (664, 30421052), (1328, 15210526), (1577, 12808864), (2656, 7605263), (3154, 6404432), (6308, 3202216), (12616, 1601108), (25232, 800554), (50464, 400277)]