1639532080

素因数分解:

$2^4\times 5^1\times {\mathrm{20494151}}^1$

素因数の和:20494164

約数の個数: 20

約数和(自身を含む): 3811912272

約数和(自身を除く): 2172380192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20494151, 40988302, 81976604, 102470755, 163953208, 204941510, 327906416, 409883020, 819766040, 1639532080]

約数ペア:

[(1, 1639532080), (2, 819766040), (4, 409883020), (5, 327906416), (8, 204941510), (10, 163953208), (16, 102470755), (20, 81976604), (40, 40988302), (80, 20494151)]