16390840

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4937}}^1$

素因数の和:5031

約数の個数: 32

約数和(自身を含む): 37331280

約数和(自身を除く): 20940440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 4937, 9874, 19748, 24685, 39496, 49370, 98740, 197480, 409771, 819542, 1639084, 2048855, 3278168, 4097710, 8195420, 16390840]

約数ペア:

[(1, 16390840), (2, 8195420), (4, 4097710), (5, 3278168), (8, 2048855), (10, 1639084), (20, 819542), (40, 409771), (83, 197480), (166, 98740), (332, 49370), (415, 39496), (664, 24685), (830, 19748), (1660, 9874), (3320, 4937)]