208609880

素因数分解:

$2^3\times 5^1\times {\mathrm{5215247}}^1$

素因数の和:5215258

約数の個数: 16

約数和(自身を含む): 469372320

約数和(自身を除く): 260762440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5215247, 10430494, 20860988, 26076235, 41721976, 52152470, 104304940, 208609880]

約数ペア:

[(1, 208609880), (2, 104304940), (4, 52152470), (5, 41721976), (8, 26076235), (10, 20860988), (20, 10430494), (40, 5215247)]