208097140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{253777}}^1$

素因数の和:253827

約数の個数: 24

約数和(自身を含む): 447664392

約数和(自身を除く): 239567252

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 253777, 507554, 1015108, 1268885, 2537770, 5075540, 10404857, 20809714, 41619428, 52024285, 104048570, 208097140]

約数ペア:

[(1, 208097140), (2, 104048570), (4, 52024285), (5, 41619428), (10, 20809714), (20, 10404857), (41, 5075540), (82, 2537770), (164, 1268885), (205, 1015108), (410, 507554), (820, 253777)]