20118176

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:513

約数の個数: 48

約数和(自身を含む): 43087464

約数和(自身を除く): 22969288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 137, 208, 274, 353, 416, 548, 706, 1096, 1412, 1781, 2192, 2824, 3562, 4384, 4589, 5648, 7124, 9178, 11296, 14248, 18356, 28496, 36712, 48361, 56992, 73424, 96722, 146848, 193444, 386888, 628693, 773776, 1257386, 1547552, 2514772, 5029544, 10059088, 20118176]

約数ペア:

[(1, 20118176), (2, 10059088), (4, 5029544), (8, 2514772), (13, 1547552), (16, 1257386), (26, 773776), (32, 628693), (52, 386888), (104, 193444), (137, 146848), (208, 96722), (274, 73424), (353, 56992), (416, 48361), (548, 36712), (706, 28496), (1096, 18356), (1412, 14248), (1781, 11296), (2192, 9178), (2824, 7124), (3562, 5648), (4384, 4589)]