209957320

素因数分解:

$2^3\times 5^1\times {\mathrm{5248933}}^1$

素因数の和:5248944

約数の個数: 16

約数和(自身を含む): 472404060

約数和(自身を除く): 262446740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5248933, 10497866, 20995732, 26244665, 41991464, 52489330, 104978660, 209957320]

約数ペア:

[(1, 209957320), (2, 104978660), (4, 52489330), (5, 41991464), (8, 26244665), (10, 20995732), (20, 10497866), (40, 5248933)]