203415920

素因数分解:

$2^4\times 5^1\times {\mathrm{2542699}}^1$

素因数の和:2542712

約数の個数: 20

約数和(自身を含む): 472942200

約数和(自身を除く): 269526280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2542699, 5085398, 10170796, 12713495, 20341592, 25426990, 40683184, 50853980, 101707960, 203415920]

約数ペア:

[(1, 203415920), (2, 101707960), (4, 50853980), (5, 40683184), (8, 25426990), (10, 20341592), (16, 12713495), (20, 10170796), (40, 5085398), (80, 2542699)]