13947880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2221}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 31596840

約数和(自身を除く): 17648960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2221, 3140, 4442, 6280, 8884, 11105, 17768, 22210, 44420, 88840, 348697, 697394, 1394788, 1743485, 2789576, 3486970, 6973940, 13947880]

約数ペア:

[(1, 13947880), (2, 6973940), (4, 3486970), (5, 2789576), (8, 1743485), (10, 1394788), (20, 697394), (40, 348697), (157, 88840), (314, 44420), (628, 22210), (785, 17768), (1256, 11105), (1570, 8884), (2221, 6280), (3140, 4442)]