78850480

素因数分解:

$2^4\times 5^1\times {\mathrm{985631}}^1$

素因数の和:985644

約数の個数: 20

約数和(自身を含む): 183327552

約数和(自身を除く): 104477072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 985631, 1971262, 3942524, 4928155, 7885048, 9856310, 15770096, 19712620, 39425240, 78850480]

約数ペア:

[(1, 78850480), (2, 39425240), (4, 19712620), (5, 15770096), (8, 9856310), (10, 7885048), (16, 4928155), (20, 3942524), (40, 1971262), (80, 985631)]