18480784

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1051}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 41221568

約数和(自身を除く): 22740784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1051, 1099, 1256, 2102, 2198, 2512, 4204, 4396, 7357, 8408, 8792, 14714, 16816, 17584, 29428, 58856, 117712, 165007, 330014, 660028, 1155049, 1320056, 2310098, 2640112, 4620196, 9240392, 18480784]

約数ペア:

[(1, 18480784), (2, 9240392), (4, 4620196), (7, 2640112), (8, 2310098), (14, 1320056), (16, 1155049), (28, 660028), (56, 330014), (112, 165007), (157, 117712), (314, 58856), (628, 29428), (1051, 17584), (1099, 16816), (1256, 14714), (2102, 8792), (2198, 8408), (2512, 7357), (4204, 4396)]