81950020

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{4373}}^1$

素因数の和:5319

約数の個数: 24

約数和(自身を含む): 172318104

約数和(自身を除く): 90368084

約数列:

[1, 2, 4, 5, 10, 20, 937, 1874, 3748, 4373, 4685, 8746, 9370, 17492, 18740, 21865, 43730, 87460, 4097501, 8195002, 16390004, 20487505, 40975010, 81950020]

約数ペア:

[(1, 81950020), (2, 40975010), (4, 20487505), (5, 16390004), (10, 8195002), (20, 4097501), (937, 87460), (1874, 43730), (3748, 21865), (4373, 18740), (4685, 17492), (8746, 9370)]