20009792

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:727

約数の個数: 56

約数和(自身を含む): 44391072

約数和(自身を除く): 24381280

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 64, 86, 88, 172, 176, 344, 352, 473, 661, 688, 704, 946, 1322, 1376, 1892, 2644, 2752, 3784, 5288, 7271, 7568, 10576, 14542, 15136, 21152, 28423, 29084, 30272, 42304, 56846, 58168, 113692, 116336, 227384, 232672, 312653, 454768, 465344, 625306, 909536, 1250612, 1819072, 2501224, 5002448, 10004896, 20009792]

約数ペア:

[(1, 20009792), (2, 10004896), (4, 5002448), (8, 2501224), (11, 1819072), (16, 1250612), (22, 909536), (32, 625306), (43, 465344), (44, 454768), (64, 312653), (86, 232672), (88, 227384), (172, 116336), (176, 113692), (344, 58168), (352, 56846), (473, 42304), (661, 30272), (688, 29084), (704, 28423), (946, 21152), (1322, 15136), (1376, 14542), (1892, 10576), (2644, 7568), (2752, 7271), (3784, 5288)]