18749792

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:543

約数の個数: 48

約数和(自身を含む): 39118464

約数和(自身を除く): 20368672

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 82, 124, 164, 248, 328, 461, 496, 656, 922, 992, 1271, 1312, 1844, 2542, 3688, 5084, 7376, 10168, 14291, 14752, 18901, 20336, 28582, 37802, 40672, 57164, 75604, 114328, 151208, 228656, 302416, 457312, 585931, 604832, 1171862, 2343724, 4687448, 9374896, 18749792]

約数ペア:

[(1, 18749792), (2, 9374896), (4, 4687448), (8, 2343724), (16, 1171862), (31, 604832), (32, 585931), (41, 457312), (62, 302416), (82, 228656), (124, 151208), (164, 114328), (248, 75604), (328, 57164), (461, 40672), (496, 37802), (656, 28582), (922, 20336), (992, 18901), (1271, 14752), (1312, 14291), (1844, 10168), (2542, 7376), (3688, 5084)]