6477804940

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{394507}}^1$

素因数の和:395337

約数の個数: 24

約数和(自身を含む): 13619994192

約数和(自身を除く): 7142189252

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 16420, 394507, 789014, 1578028, 1972535, 3945070, 7890140, 323890247, 647780494, 1295560988, 1619451235, 3238902470, 6477804940]

約数ペア:

[(1, 6477804940), (2, 3238902470), (4, 1619451235), (5, 1295560988), (10, 647780494), (20, 323890247), (821, 7890140), (1642, 3945070), (3284, 1972535), (4105, 1578028), (8210, 789014), (16420, 394507)]