249304840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{44839}}^1$

素因数の和:44989

約数の個数: 32

約数和(自身を含む): 564984000

約数和(自身を除く): 315679160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 44839, 89678, 179356, 224195, 358712, 448390, 896780, 1793560, 6232621, 12465242, 24930484, 31163105, 49860968, 62326210, 124652420, 249304840]

約数ペア:

[(1, 249304840), (2, 124652420), (4, 62326210), (5, 49860968), (8, 31163105), (10, 24930484), (20, 12465242), (40, 6232621), (139, 1793560), (278, 896780), (556, 448390), (695, 358712), (1112, 224195), (1390, 179356), (2780, 89678), (5560, 44839)]