16663075

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 24998400

約数和(自身を除く): 8335325

約数列:

[1, 5, 11, 13, 25, 55, 59, 65, 79, 143, 275, 295, 325, 395, 649, 715, 767, 869, 1027, 1475, 1975, 3245, 3575, 3835, 4345, 4661, 5135, 8437, 11297, 16225, 19175, 21725, 23305, 25675, 42185, 51271, 56485, 60593, 116525, 210925, 256355, 282425, 302965, 666523, 1281775, 1514825, 3332615, 16663075]

約数ペア:

[(1, 16663075), (5, 3332615), (11, 1514825), (13, 1281775), (25, 666523), (55, 302965), (59, 282425), (65, 256355), (79, 210925), (143, 116525), (275, 60593), (295, 56485), (325, 51271), (395, 42185), (649, 25675), (715, 23305), (767, 21725), (869, 19175), (1027, 16225), (1475, 11297), (1975, 8437), (3245, 5135), (3575, 4661), (3835, 4345)]