208907590

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{2803}}^1$

素因数の和:3096

約数の個数: 32

約数和(自身を含む): 390653280

約数和(自身を除く): 181745690

約数列:

[1, 2, 5, 10, 29, 58, 145, 257, 290, 514, 1285, 2570, 2803, 5606, 7453, 14015, 14906, 28030, 37265, 74530, 81287, 162574, 406435, 720371, 812870, 1440742, 3601855, 7203710, 20890759, 41781518, 104453795, 208907590]

約数ペア:

[(1, 208907590), (2, 104453795), (5, 41781518), (10, 20890759), (29, 7203710), (58, 3601855), (145, 1440742), (257, 812870), (290, 720371), (514, 406435), (1285, 162574), (2570, 81287), (2803, 74530), (5606, 37265), (7453, 28030), (14015, 14906)]