209225920

素因数分解:

$2^6\times 5^1\times {\mathrm{653831}}^1$

素因数の和:653848

約数の個数: 28

約数和(自身を含む): 498219984

約数和(自身を除く): 288994064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 653831, 1307662, 2615324, 3269155, 5230648, 6538310, 10461296, 13076620, 20922592, 26153240, 41845184, 52306480, 104612960, 209225920]

約数ペア:

[(1, 209225920), (2, 104612960), (4, 52306480), (5, 41845184), (8, 26153240), (10, 20922592), (16, 13076620), (20, 10461296), (32, 6538310), (40, 5230648), (64, 3269155), (80, 2615324), (160, 1307662), (320, 653831)]