78851960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179209}}^1$

素因数の和:179231

約数の個数: 32

約数和(自身を含む): 193546800

約数和(自身を除く): 114694840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 179209, 358418, 716836, 896045, 1433672, 1792090, 1971299, 3584180, 3942598, 7168360, 7885196, 9856495, 15770392, 19712990, 39425980, 78851960]

約数ペア:

[(1, 78851960), (2, 39425980), (4, 19712990), (5, 15770392), (8, 9856495), (10, 7885196), (11, 7168360), (20, 3942598), (22, 3584180), (40, 1971299), (44, 1792090), (55, 1433672), (88, 896045), (110, 716836), (220, 358418), (440, 179209)]