312492016

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1979}}^1$

素因数の和:2197

約数の個数: 40

約数和(自身を含む): 618710400

約数和(自身を除く): 306218384

約数列:

[1, 2, 4, 8, 16, 71, 139, 142, 278, 284, 556, 568, 1112, 1136, 1979, 2224, 3958, 7916, 9869, 15832, 19738, 31664, 39476, 78952, 140509, 157904, 275081, 281018, 550162, 562036, 1100324, 1124072, 2200648, 2248144, 4401296, 19530751, 39061502, 78123004, 156246008, 312492016]

約数ペア:

[(1, 312492016), (2, 156246008), (4, 78123004), (8, 39061502), (16, 19530751), (71, 4401296), (139, 2248144), (142, 2200648), (278, 1124072), (284, 1100324), (556, 562036), (568, 550162), (1112, 281018), (1136, 275081), (1979, 157904), (2224, 140509), (3958, 78952), (7916, 39476), (9869, 31664), (15832, 19738)]