19271525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 30248064

約数和(自身を除く): 10976539

約数列:

[1, 5, 7, 13, 25, 35, 43, 65, 91, 175, 197, 215, 301, 325, 455, 559, 985, 1075, 1379, 1505, 2275, 2561, 2795, 3913, 4925, 6895, 7525, 8471, 12805, 13975, 17927, 19565, 34475, 42355, 59297, 64025, 89635, 97825, 110123, 211775, 296485, 448175, 550615, 770861, 1482425, 2753075, 3854305, 19271525]

約数ペア:

[(1, 19271525), (5, 3854305), (7, 2753075), (13, 1482425), (25, 770861), (35, 550615), (43, 448175), (65, 296485), (91, 211775), (175, 110123), (197, 97825), (215, 89635), (301, 64025), (325, 59297), (455, 42355), (559, 34475), (985, 19565), (1075, 17927), (1379, 13975), (1505, 12805), (2275, 8471), (2561, 7525), (2795, 6895), (3913, 4925)]