320401520

素因数分解:

$2^4\times 5^1\times {\mathrm{4005019}}^1$

素因数の和:4005032

約数の個数: 20

約数和(自身を含む): 744933720

約数和(自身を除く): 424532200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4005019, 8010038, 16020076, 20025095, 32040152, 40050190, 64080304, 80100380, 160200760, 320401520]

約数ペア:

[(1, 320401520), (2, 160200760), (4, 80100380), (5, 64080304), (8, 40050190), (10, 32040152), (16, 20025095), (20, 16020076), (40, 8010038), (80, 4005019)]