81977080

素因数分解:

$2^3\times 5^1\times {\mathrm{2049427}}^1$

素因数の和:2049438

約数の個数: 16

約数和(自身を含む): 184448520

約数和(自身を除く): 102471440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2049427, 4098854, 8197708, 10247135, 16395416, 20494270, 40988540, 81977080]

約数ペア:

[(1, 81977080), (2, 40988540), (4, 20494270), (5, 16395416), (8, 10247135), (10, 8197708), (20, 4098854), (40, 2049427)]