42654440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5413}}^1$

素因数の和:5621

約数の個数: 32

約数和(自身を含む): 96477480

約数和(自身を除く): 53823040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5413, 7880, 10826, 21652, 27065, 43304, 54130, 108260, 216520, 1066361, 2132722, 4265444, 5331805, 8530888, 10663610, 21327220, 42654440]

約数ペア:

[(1, 42654440), (2, 21327220), (4, 10663610), (5, 8530888), (8, 5331805), (10, 4265444), (20, 2132722), (40, 1066361), (197, 216520), (394, 108260), (788, 54130), (985, 43304), (1576, 27065), (1970, 21652), (3940, 10826), (5413, 7880)]