19915743565

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1\times {\mathrm{1601}}^1$

素因数の和:2049

約数の個数: 32

約数和(自身を含む): 24505294176

約数和(自身を除く): 4589550611

約数列:

[1, 5, 73, 173, 197, 365, 865, 985, 1601, 8005, 12629, 14381, 34081, 63145, 71905, 116873, 170405, 276973, 315397, 584365, 1384865, 1576985, 2487913, 12439565, 20219029, 23023981, 54563681, 101095145, 115119905, 272818405, 3983148713, 19915743565]

約数ペア:

[(1, 19915743565), (5, 3983148713), (73, 272818405), (173, 115119905), (197, 101095145), (365, 54563681), (865, 23023981), (985, 20219029), (1601, 12439565), (8005, 2487913), (12629, 1576985), (14381, 1384865), (34081, 584365), (63145, 315397), (71905, 276973), (116873, 170405)]