38856280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4931}}^1$

素因数の和:5139

約数の個数: 32

約数和(自身を含む): 87888240

約数和(自身を除く): 49031960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 4931, 7880, 9862, 19724, 24655, 39448, 49310, 98620, 197240, 971407, 1942814, 3885628, 4857035, 7771256, 9714070, 19428140, 38856280]

約数ペア:

[(1, 38856280), (2, 19428140), (4, 9714070), (5, 7771256), (8, 4857035), (10, 3885628), (20, 1942814), (40, 971407), (197, 197240), (394, 98620), (788, 49310), (985, 39448), (1576, 24655), (1970, 19724), (3940, 9862), (4931, 7880)]