389636080

素因数分解:

$2^4\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{4337}}^1$

素因数の和:5473

約数の個数: 40

約数和(自身を含む): 906919632

約数和(自身を除く): 517283552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1123, 2246, 4337, 4492, 5615, 8674, 8984, 11230, 17348, 17968, 21685, 22460, 34696, 43370, 44920, 69392, 86740, 89840, 173480, 346960, 4870451, 9740902, 19481804, 24352255, 38963608, 48704510, 77927216, 97409020, 194818040, 389636080]

約数ペア:

[(1, 389636080), (2, 194818040), (4, 97409020), (5, 77927216), (8, 48704510), (10, 38963608), (16, 24352255), (20, 19481804), (40, 9740902), (80, 4870451), (1123, 346960), (2246, 173480), (4337, 89840), (4492, 86740), (5615, 69392), (8674, 44920), (8984, 43370), (11230, 34696), (17348, 22460), (17968, 21685)]