20686656

素因数分解:

$2^6\times 3^1\times {\mathrm{163}}^1\times {\mathrm{661}}^1$

素因数の和:839

約数の個数: 56

約数和(自身を含む): 55152544

約数和(自身を除く): 34465888

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 163, 192, 326, 489, 652, 661, 978, 1304, 1322, 1956, 1983, 2608, 2644, 3912, 3966, 5216, 5288, 7824, 7932, 10432, 10576, 15648, 15864, 21152, 31296, 31728, 42304, 63456, 107743, 126912, 215486, 323229, 430972, 646458, 861944, 1292916, 1723888, 2585832, 3447776, 5171664, 6895552, 10343328, 20686656]

約数ペア:

[(1, 20686656), (2, 10343328), (3, 6895552), (4, 5171664), (6, 3447776), (8, 2585832), (12, 1723888), (16, 1292916), (24, 861944), (32, 646458), (48, 430972), (64, 323229), (96, 215486), (163, 126912), (192, 107743), (326, 63456), (489, 42304), (652, 31728), (661, 31296), (978, 21152), (1304, 15864), (1322, 15648), (1956, 10576), (1983, 10432), (2608, 7932), (2644, 7824), (3912, 5288), (3966, 5216)]