208520816

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{23567}}^1$

素因数の和:23661

約数の個数: 40

約数和(自身を含む): 467589120

約数和(自身を除く): 259068304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 4424, 8848, 23567, 47134, 94268, 164969, 188536, 329938, 377072, 659876, 1319752, 1861793, 2639504, 3723586, 7447172, 13032551, 14894344, 26065102, 29788688, 52130204, 104260408, 208520816]

約数ペア:

[(1, 208520816), (2, 104260408), (4, 52130204), (7, 29788688), (8, 26065102), (14, 14894344), (16, 13032551), (28, 7447172), (56, 3723586), (79, 2639504), (112, 1861793), (158, 1319752), (316, 659876), (553, 377072), (632, 329938), (1106, 188536), (1264, 164969), (2212, 94268), (4424, 47134), (8848, 23567)]