20119760

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5351}}^1$

素因数の和:5411

約数の個数: 40

約数和(自身を含む): 47782656

約数和(自身を除く): 27662896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5351, 10702, 21404, 26755, 42808, 53510, 85616, 107020, 214040, 251497, 428080, 502994, 1005988, 1257485, 2011976, 2514970, 4023952, 5029940, 10059880, 20119760]

約数ペア:

[(1, 20119760), (2, 10059880), (4, 5029940), (5, 4023952), (8, 2514970), (10, 2011976), (16, 1257485), (20, 1005988), (40, 502994), (47, 428080), (80, 251497), (94, 214040), (188, 107020), (235, 85616), (376, 53510), (470, 42808), (752, 26755), (940, 21404), (1880, 10702), (3760, 5351)]