28545680

素因数分解:

$2^4\times 5^1\times {\mathrm{356821}}^1$

素因数の和:356834

約数の個数: 20

約数和(自身を含む): 66368892

約数和(自身を除く): 37823212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 356821, 713642, 1427284, 1784105, 2854568, 3568210, 5709136, 7136420, 14272840, 28545680]

約数ペア:

[(1, 28545680), (2, 14272840), (4, 7136420), (5, 5709136), (8, 3568210), (10, 2854568), (16, 1784105), (20, 1427284), (40, 713642), (80, 356821)]