42796280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5431}}^1$

素因数の和:5639

約数の個数: 32

約数和(自身を含む): 96798240

約数和(自身を除く): 54001960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5431, 7880, 10862, 21724, 27155, 43448, 54310, 108620, 217240, 1069907, 2139814, 4279628, 5349535, 8559256, 10699070, 21398140, 42796280]

約数ペア:

[(1, 42796280), (2, 21398140), (4, 10699070), (5, 8559256), (8, 5349535), (10, 4279628), (20, 2139814), (40, 1069907), (197, 217240), (394, 108620), (788, 54310), (985, 43448), (1576, 27155), (1970, 21724), (3940, 10862), (5431, 7880)]