12997075

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 20623680

約数和(自身を除く): 7626605

約数列:

[1, 5, 7, 13, 25, 29, 35, 65, 91, 145, 175, 197, 203, 325, 377, 455, 725, 985, 1015, 1379, 1885, 2275, 2561, 2639, 4925, 5075, 5713, 6895, 9425, 12805, 13195, 17927, 28565, 34475, 39991, 64025, 65975, 74269, 89635, 142825, 199955, 371345, 448175, 519883, 999775, 1856725, 2599415, 12997075]

約数ペア:

[(1, 12997075), (5, 2599415), (7, 1856725), (13, 999775), (25, 519883), (29, 448175), (35, 371345), (65, 199955), (91, 142825), (145, 89635), (175, 74269), (197, 65975), (203, 64025), (325, 39991), (377, 34475), (455, 28565), (725, 17927), (985, 13195), (1015, 12805), (1379, 9425), (1885, 6895), (2275, 5713), (2561, 5075), (2639, 4925)]