20486533904

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9211571}}^1$

素因数の和:9211718

約数の個数: 20

約数和(自身を含む): 39978222480

約数和(自身を除く): 19491688576

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9211571, 18423142, 36846284, 73692568, 147385136, 1280408369, 2560816738, 5121633476, 10243266952, 20486533904]

約数ペア:

[(1, 20486533904), (2, 10243266952), (4, 5121633476), (8, 2560816738), (16, 1280408369), (139, 147385136), (278, 73692568), (556, 36846284), (1112, 18423142), (2224, 9211571)]