20342184760

素因数分解:

$2^3\times 5^1\times {\mathrm{11243}}^1\times {\mathrm{45233}}^1$

素因数の和:56487

約数の個数: 32

約数和(自身を含む): 45774998640

約数和(自身を除く): 25432813880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 11243, 22486, 44972, 45233, 56215, 89944, 90466, 112430, 180932, 224860, 226165, 361864, 449720, 452330, 904660, 1809320, 508554619, 1017109238, 2034218476, 2542773095, 4068436952, 5085546190, 10171092380, 20342184760]

約数ペア:

[(1, 20342184760), (2, 10171092380), (4, 5085546190), (5, 4068436952), (8, 2542773095), (10, 2034218476), (20, 1017109238), (40, 508554619), (11243, 1809320), (22486, 904660), (44972, 452330), (45233, 449720), (56215, 361864), (89944, 226165), (90466, 224860), (112430, 180932)]