19976810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{691}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 42599520

約数和(自身を除く): 22622710

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 59, 70, 98, 118, 245, 295, 413, 490, 590, 691, 826, 1382, 2065, 2891, 3455, 4130, 4837, 5782, 6910, 9674, 14455, 24185, 28910, 33859, 40769, 48370, 67718, 81538, 169295, 203845, 285383, 338590, 407690, 570766, 1426915, 1997681, 2853830, 3995362, 9988405, 19976810]

約数ペア:

[(1, 19976810), (2, 9988405), (5, 3995362), (7, 2853830), (10, 1997681), (14, 1426915), (35, 570766), (49, 407690), (59, 338590), (70, 285383), (98, 203845), (118, 169295), (245, 81538), (295, 67718), (413, 48370), (490, 40769), (590, 33859), (691, 28910), (826, 24185), (1382, 14455), (2065, 9674), (2891, 6910), (3455, 5782), (4130, 4837)]