20893184

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:147

約数の個数: 80

約数和(自身を含む): 46632432

約数和(自身を除く): 25739248

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 73, 86, 104, 128, 146, 172, 208, 256, 292, 344, 416, 512, 559, 584, 688, 832, 949, 1118, 1168, 1376, 1664, 1898, 2236, 2336, 2752, 3139, 3328, 3796, 4472, 4672, 5504, 6278, 6656, 7592, 8944, 9344, 11008, 12556, 15184, 17888, 18688, 22016, 25112, 30368, 35776, 37376, 40807, 50224, 60736, 71552, 81614, 100448, 121472, 143104, 163228, 200896, 242944, 286208, 326456, 401792, 485888, 652912, 803584, 1305824, 1607168, 2611648, 5223296, 10446592, 20893184]

約数ペア:

[(1, 20893184), (2, 10446592), (4, 5223296), (8, 2611648), (13, 1607168), (16, 1305824), (26, 803584), (32, 652912), (43, 485888), (52, 401792), (64, 326456), (73, 286208), (86, 242944), (104, 200896), (128, 163228), (146, 143104), (172, 121472), (208, 100448), (256, 81614), (292, 71552), (344, 60736), (416, 50224), (512, 40807), (559, 37376), (584, 35776), (688, 30368), (832, 25112), (949, 22016), (1118, 18688), (1168, 17888), (1376, 15184), (1664, 12556), (1898, 11008), (2236, 9344), (2336, 8944), (2752, 7592), (3139, 6656), (3328, 6278), (3796, 5504), (4472, 4672)]