19949248

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:725

約数の個数: 56

約数和(自身を含む): 44256960

約数和(自身を除く): 24307712

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 64, 86, 88, 172, 176, 344, 352, 473, 659, 688, 704, 946, 1318, 1376, 1892, 2636, 2752, 3784, 5272, 7249, 7568, 10544, 14498, 15136, 21088, 28337, 28996, 30272, 42176, 56674, 57992, 113348, 115984, 226696, 231968, 311707, 453392, 463936, 623414, 906784, 1246828, 1813568, 2493656, 4987312, 9974624, 19949248]

約数ペア:

[(1, 19949248), (2, 9974624), (4, 4987312), (8, 2493656), (11, 1813568), (16, 1246828), (22, 906784), (32, 623414), (43, 463936), (44, 453392), (64, 311707), (86, 231968), (88, 226696), (172, 115984), (176, 113348), (344, 57992), (352, 56674), (473, 42176), (659, 30272), (688, 28996), (704, 28337), (946, 21088), (1318, 15136), (1376, 14498), (1892, 10544), (2636, 7568), (2752, 7249), (3784, 5272)]