20285360

素因数分解:

$2^4\times 5^1\times {\mathrm{253567}}^1$

素因数の和:253580

約数の個数: 20

約数和(自身を含む): 47163648

約数和(自身を除く): 26878288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253567, 507134, 1014268, 1267835, 2028536, 2535670, 4057072, 5071340, 10142680, 20285360]

約数ペア:

[(1, 20285360), (2, 10142680), (4, 5071340), (5, 4057072), (8, 2535670), (10, 2028536), (16, 1267835), (20, 1014268), (40, 507134), (80, 253567)]