20128656

素因数分解:

$2^4\times 3^1\times {\mathrm{157}}^1\times {\mathrm{2671}}^1$

素因数の和:2839

約数の個数: 40

約数和(自身を含む): 52349824

約数和(自身を除く): 32221168

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 157, 314, 471, 628, 942, 1256, 1884, 2512, 2671, 3768, 5342, 7536, 8013, 10684, 16026, 21368, 32052, 42736, 64104, 128208, 419347, 838694, 1258041, 1677388, 2516082, 3354776, 5032164, 6709552, 10064328, 20128656]

約数ペア:

[(1, 20128656), (2, 10064328), (3, 6709552), (4, 5032164), (6, 3354776), (8, 2516082), (12, 1677388), (16, 1258041), (24, 838694), (48, 419347), (157, 128208), (314, 64104), (471, 42736), (628, 32052), (942, 21368), (1256, 16026), (1884, 10684), (2512, 8013), (2671, 7536), (3768, 5342)]