208518804920

素因数分解:

$2^3\times 5^1\times {\mathrm{5212970123}}^1$

素因数の和:5212970134

約数の個数: 16

約数和(自身を含む): 469167311160

約数和(自身を除く): 260648506240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5212970123, 10425940246, 20851880492, 26064850615, 41703760984, 52129701230, 104259402460, 208518804920]

約数ペア:

[(1, 208518804920), (2, 104259402460), (4, 52129701230), (5, 41703760984), (8, 26064850615), (10, 20851880492), (20, 10425940246), (40, 5212970123)]