208194880

素因数分解:

$2^6\times 5^1\times {\mathrm{650609}}^1$

素因数の和:650626

約数の個数: 28

約数和(自身を含む): 495764820

約数和(自身を除く): 287569940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 650609, 1301218, 2602436, 3253045, 5204872, 6506090, 10409744, 13012180, 20819488, 26024360, 41638976, 52048720, 104097440, 208194880]

約数ペア:

[(1, 208194880), (2, 104097440), (4, 52048720), (5, 41638976), (8, 26024360), (10, 20819488), (16, 13012180), (20, 10409744), (32, 6506090), (40, 5204872), (64, 3253045), (80, 2602436), (160, 1301218), (320, 650609)]