1380455560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3137399}}^1$

素因数の和:3137421

約数の個数: 32

約数和(自身を含む): 3388392000

約数和(自身を除く): 2007936440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 3137399, 6274798, 12549596, 15686995, 25099192, 31373990, 34511389, 62747980, 69022778, 125495960, 138045556, 172556945, 276091112, 345113890, 690227780, 1380455560]

約数ペア:

[(1, 1380455560), (2, 690227780), (4, 345113890), (5, 276091112), (8, 172556945), (10, 138045556), (11, 125495960), (20, 69022778), (22, 62747980), (40, 34511389), (44, 31373990), (55, 25099192), (88, 15686995), (110, 12549596), (220, 6274798), (440, 3137399)]