319103920

素因数分解:

$2^4\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{2749}}^1$

素因数の和:4213

約数の個数: 40

約数和(自身を含む): 742698000

約数和(自身を除く): 423594080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1451, 2749, 2902, 5498, 5804, 7255, 10996, 11608, 13745, 14510, 21992, 23216, 27490, 29020, 43984, 54980, 58040, 109960, 116080, 219920, 3988799, 7977598, 15955196, 19943995, 31910392, 39887990, 63820784, 79775980, 159551960, 319103920]

約数ペア:

[(1, 319103920), (2, 159551960), (4, 79775980), (5, 63820784), (8, 39887990), (10, 31910392), (16, 19943995), (20, 15955196), (40, 7977598), (80, 3988799), (1451, 219920), (2749, 116080), (2902, 109960), (5498, 58040), (5804, 54980), (7255, 43984), (10996, 29020), (11608, 27490), (13745, 23216), (14510, 21992)]