20389344

素因数分解:

$2^5\times 3^1\times {\mathrm{163}}^1\times {\mathrm{1303}}^1$

素因数の和:1479

約数の個数: 48

約数和(自身を含む): 53891712

約数和(自身を除く): 33502368

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 163, 326, 489, 652, 978, 1303, 1304, 1956, 2606, 2608, 3909, 3912, 5212, 5216, 7818, 7824, 10424, 15636, 15648, 20848, 31272, 41696, 62544, 125088, 212389, 424778, 637167, 849556, 1274334, 1699112, 2548668, 3398224, 5097336, 6796448, 10194672, 20389344]

約数ペア:

[(1, 20389344), (2, 10194672), (3, 6796448), (4, 5097336), (6, 3398224), (8, 2548668), (12, 1699112), (16, 1274334), (24, 849556), (32, 637167), (48, 424778), (96, 212389), (163, 125088), (326, 62544), (489, 41696), (652, 31272), (978, 20848), (1303, 15648), (1304, 15636), (1956, 10424), (2606, 7824), (2608, 7818), (3909, 5216), (3912, 5212)]