80159680

素因数分解:

$2^6\times 5^1\times {\mathrm{250499}}^1$

素因数の和:250516

約数の個数: 28

約数和(自身を含む): 190881000

約数和(自身を除く): 110721320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 250499, 500998, 1001996, 1252495, 2003992, 2504990, 4007984, 5009980, 8015968, 10019960, 16031936, 20039920, 40079840, 80159680]

約数ペア:

[(1, 80159680), (2, 40079840), (4, 20039920), (5, 16031936), (8, 10019960), (10, 8015968), (16, 5009980), (20, 4007984), (32, 2504990), (40, 2003992), (64, 1252495), (80, 1001996), (160, 500998), (320, 250499)]