208364150

素因数分解:

$2^1\times 5^2\times {\mathrm{643}}^1\times {\mathrm{6481}}^1$

素因数の和:7136

約数の個数: 24

約数和(自身を含む): 388219944

約数和(自身を除く): 179855794

約数列:

[1, 2, 5, 10, 25, 50, 643, 1286, 3215, 6430, 6481, 12962, 16075, 32150, 32405, 64810, 162025, 324050, 4167283, 8334566, 20836415, 41672830, 104182075, 208364150]

約数ペア:

[(1, 208364150), (2, 104182075), (5, 41672830), (10, 20836415), (25, 8334566), (50, 4167283), (643, 324050), (1286, 162025), (3215, 64810), (6430, 32405), (6481, 32150), (12962, 16075)]