80145680

素因数分解:

$2^4\times 5^1\times {\mathrm{1001821}}^1$

素因数の和:1001834

約数の個数: 20

約数和(自身を含む): 186338892

約数和(自身を除く): 106193212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1001821, 2003642, 4007284, 5009105, 8014568, 10018210, 16029136, 20036420, 40072840, 80145680]

約数ペア:

[(1, 80145680), (2, 40072840), (4, 20036420), (5, 16029136), (8, 10018210), (10, 8014568), (16, 5009105), (20, 4007284), (40, 2003642), (80, 1001821)]