20087504

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{40499}}^1$

素因数の和:40538

約数の個数: 20

約数和(自身を含む): 40176000

約数和(自身を除く): 20088496

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 40499, 80998, 161996, 323992, 647984, 1255469, 2510938, 5021876, 10043752, 20087504]

約数ペア:

[(1, 20087504), (2, 10043752), (4, 5021876), (8, 2510938), (16, 1255469), (31, 647984), (62, 323992), (124, 161996), (248, 80998), (496, 40499)]